Keyword Index
Index Entry
Section
#
#pragma:
Pragmas
#pragma implementation:
C++ Interface
#pragma implementation, implied:
C++ Interface
#pragma interface:
C++ Interface
$
$:
Dollar Signs
%
‘%’ in constraint:
Modifiers
%include:
Spec Files
%include_noerr:
Spec Files
%rename:
Spec Files
&
‘&’ in constraint:
Modifiers
'
':
Incompatibilities
*
*__builtin_alloca:
Other Builtins
*__builtin_alloca_with_align:
Other Builtins
*__builtin_alloca_with_align_and_max:
Other Builtins
+
‘+’ in constraint:
Modifiers
-
-lgcc, use with -nodefaultlibs:
Link Options
-lgcc, use with -nostdlib:
Link Options
-march feature modifiers:
AArch64 Options
-mcpu feature modifiers:
AArch64 Options
-nodefaultlibs and unresolved references:
Link Options
-nostdlib and unresolved references:
Link Options
.
.sdata/.sdata2 references (PowerPC):
RS/6000 and PowerPC Options
/
//:
C++ Comments
0
‘0’ in constraint:
Simple Constraints
<
‘<’ in constraint:
Simple Constraints
=
‘=’ in constraint:
Modifiers
>
‘>’ in constraint:
Simple Constraints
?
?: extensions:
Conditionals
?: side effect:
Conditionals
_
‘_’ in variables in macros:
Typeof
_Accum data type:
Fixed-Point
_Complex keyword:
Complex
_Decimal128 data type:
Decimal Float
_Decimal32 data type:
Decimal Float
_Decimal64 data type:
Decimal Float
_Exit:
Other Builtins
_exit:
Other Builtins
_Floatn data types:
Floating Types
_Floatnx data types:
Floating Types
_Fract data type:
Fixed-Point
_get_ssp:
x86 control-flow protection intrinsics
_HTM_FIRST_USER_ABORT_CODE:
S/390 System z Built-in Functions
_inc_ssp:
x86 control-flow protection intrinsics
_Sat data type:
Fixed-Point
_xabort:
x86 transactional memory intrinsics
_xbegin:
x86 transactional memory intrinsics
_xend:
x86 transactional memory intrinsics
_xtest:
x86 transactional memory intrinsics
__atomic_add_fetch:
__atomic Builtins
__atomic_always_lock_free:
__atomic Builtins
__atomic_and_fetch:
__atomic Builtins
__atomic_clear:
__atomic Builtins
__atomic_compare_exchange:
__atomic Builtins
__atomic_compare_exchange_n:
__atomic Builtins
__atomic_exchange:
__atomic Builtins
__atomic_exchange_n:
__atomic Builtins
__atomic_fetch_add:
__atomic Builtins
__atomic_fetch_and:
__atomic Builtins
__atomic_fetch_nand:
__atomic Builtins
__atomic_fetch_or:
__atomic Builtins
__atomic_fetch_sub:
__atomic Builtins
__atomic_fetch_xor:
__atomic Builtins
__atomic_is_lock_free:
__atomic Builtins
__atomic_load:
__atomic Builtins
__atomic_load_n:
__atomic Builtins
__atomic_nand_fetch:
__atomic Builtins
__atomic_or_fetch:
__atomic Builtins
__atomic_signal_fence:
__atomic Builtins
__atomic_store:
__atomic Builtins
__atomic_store_n:
__atomic Builtins
__atomic_sub_fetch:
__atomic Builtins
__atomic_test_and_set:
__atomic Builtins
__atomic_thread_fence:
__atomic Builtins
__atomic_xor_fetch:
__atomic Builtins
__builtin_addf128_round_to_odd:
Basic PowerPC Built-in Functions Available on ISA 3.0
__builtin_add_overflow:
Integer Overflow Builtins
__builtin_add_overflow_p:
Integer Overflow Builtins
__builtin_alloca:
Other Builtins
__builtin_alloca_with_align:
Other Builtins
__builtin_alloca_with_align_and_max:
Other Builtins
__builtin_apply:
Constructing Calls
__builtin_apply_args:
Constructing Calls
__builtin_arc_aligned:
ARC Built-in Functions
__builtin_arc_brk:
ARC Built-in Functions
__builtin_arc_core_read:
ARC Built-in Functions
__builtin_arc_core_write:
ARC Built-in Functions
__builtin_arc_divaw:
ARC Built-in Functions
__builtin_arc_flag:
ARC Built-in Functions
__builtin_arc_lr:
ARC Built-in Functions
__builtin_arc_mul64:
ARC Built-in Functions
__builtin_arc_mulu64:
ARC Built-in Functions
__builtin_arc_nop:
ARC Built-in Functions
__builtin_arc_norm:
ARC Built-in Functions
__builtin_arc_normw:
ARC Built-in Functions
__builtin_arc_rtie:
ARC Built-in Functions
__builtin_arc_sleep:
ARC Built-in Functions
__builtin_arc_sr:
ARC Built-in Functions
__builtin_arc_swap:
ARC Built-in Functions
__builtin_arc_swi:
ARC Built-in Functions
__builtin_arc_sync:
ARC Built-in Functions
__builtin_arc_trap_s:
ARC Built-in Functions
__builtin_arc_unimp_s:
ARC Built-in Functions
__builtin_assume_aligned:
Other Builtins
__builtin_bswap16:
Other Builtins
__builtin_bswap32:
Other Builtins
__builtin_bswap64:
Other Builtins
__builtin_call_with_static_chain:
Other Builtins
__builtin_call_with_static_chain:
Other Builtins
__builtin_choose_expr:
Other Builtins
__builtin_clrsb:
Other Builtins
__builtin_clrsbl:
Other Builtins
__builtin_clrsbll:
Other Builtins
__builtin_clz:
Other Builtins
__builtin_clzl:
Other Builtins
__builtin_clzll:
Other Builtins
__builtin_complex:
Other Builtins
__builtin_constant_p:
Other Builtins
__builtin_convertvector:
Vector Extensions
__builtin_cpu_init:
Basic PowerPC Built-in Functions Available on all Configurations
__builtin_cpu_init:
x86 Built-in Functions
__builtin_cpu_is:
Basic PowerPC Built-in Functions Available on all Configurations
__builtin_cpu_is:
x86 Built-in Functions
__builtin_cpu_supports:
Basic PowerPC Built-in Functions Available on all Configurations
__builtin_cpu_supports:
x86 Built-in Functions
__builtin_ctz:
Other Builtins
__builtin_ctzl:
Other Builtins
__builtin_ctzll:
Other Builtins
__builtin_divf128_round_to_odd:
Basic PowerPC Built-in Functions Available on ISA 3.0
__builtin_expect:
Other Builtins
__builtin_expect_with_probability:
Other Builtins
__builtin_extend_pointer:
Other Builtins
__builtin_extend_pointer:
Other Builtins
__builtin_extract_return_addr:
Return Address
__builtin_ffs:
Other Builtins
__builtin_ffsl:
Other Builtins
__builtin_ffsll:
Other Builtins
__builtin_FILE:
Other Builtins
__builtin_fmaf128_round_to_odd:
Basic PowerPC Built-in Functions Available on ISA 3.0
__builtin_fpclassify:
Other Builtins
__builtin_fpclassify:
Other Builtins
__builtin_frame_address:
Return Address
__builtin_frob_return_addr:
Return Address
__builtin_FUNCTION:
Other Builtins
__builtin_goacc_parlevel_id:
Other Builtins
__builtin_goacc_parlevel_size:
Other Builtins
__builtin_has_attribute:
Other Builtins
__builtin_has_attribute:
Other Builtins
__builtin_huge_val:
Other Builtins
__builtin_huge_valf:
Other Builtins
__builtin_huge_valfn:
Other Builtins
__builtin_huge_valfnx:
Other Builtins
__builtin_huge_vall:
Other Builtins
__builtin_huge_valq:
x86 Built-in Functions
__builtin_inf:
Other Builtins
__builtin_infd128:
Other Builtins
__builtin_infd32:
Other Builtins
__builtin_infd64:
Other Builtins
__builtin_inff:
Other Builtins
__builtin_inffn:
Other Builtins
__builtin_inffnx:
Other Builtins
__builtin_infl:
Other Builtins
__builtin_infq:
x86 Built-in Functions
__builtin_isfinite:
Other Builtins
__builtin_isgreater:
Other Builtins
__builtin_isgreaterequal:
Other Builtins
__builtin_isinf_sign:
Other Builtins
__builtin_isinf_sign:
Other Builtins
__builtin_isless:
Other Builtins
__builtin_islessequal:
Other Builtins
__builtin_islessgreater:
Other Builtins
__builtin_isnormal:
Other Builtins
__builtin_isunordered:
Other Builtins
__builtin_is_constant_evaluated:
Other Builtins
__builtin_LINE:
Other Builtins
__builtin_longjmp:
Nonlocal Gotos
__builtin_mulf128_round_to_odd:
Basic PowerPC Built-in Functions Available on ISA 3.0
__builtin_mul_overflow:
Integer Overflow Builtins
__builtin_mul_overflow_p:
Integer Overflow Builtins
__builtin_nan:
Other Builtins
__builtin_nand128:
Other Builtins
__builtin_nand32:
Other Builtins
__builtin_nand64:
Other Builtins
__builtin_nanf:
Other Builtins
__builtin_nanfn:
Other Builtins
__builtin_nanfnx:
Other Builtins
__builtin_nanl:
Other Builtins
__builtin_nanq:
x86 Built-in Functions
__builtin_nans:
Other Builtins
__builtin_nansf:
Other Builtins
__builtin_nansfn:
Other Builtins
__builtin_nansfnx:
Other Builtins
__builtin_nansl:
Other Builtins
__builtin_nansq:
x86 Built-in Functions
__builtin_nds32_isb:
NDS32 Built-in Functions
__builtin_nds32_isync:
NDS32 Built-in Functions
__builtin_nds32_mfsr:
NDS32 Built-in Functions
__builtin_nds32_mfusr:
NDS32 Built-in Functions
__builtin_nds32_mtsr:
NDS32 Built-in Functions
__builtin_nds32_mtusr:
NDS32 Built-in Functions
__builtin_nds32_setgie_dis:
NDS32 Built-in Functions
__builtin_nds32_setgie_en:
NDS32 Built-in Functions
__builtin_non_tx_store:
S/390 System z Built-in Functions
__builtin_object_size:
Object Size Checking
__builtin_object_size:
Object Size Checking
__builtin_object_size:
Other Builtins
__builtin_object_size:
Other Builtins
__builtin_offsetof:
Offsetof
__builtin_parity:
Other Builtins
__builtin_parityl:
Other Builtins
__builtin_parityll:
Other Builtins
__builtin_popcount:
Other Builtins
__builtin_popcountl:
Other Builtins
__builtin_popcountll:
Other Builtins
__builtin_powi:
Other Builtins
__builtin_powi:
Other Builtins
__builtin_powif:
Other Builtins
__builtin_powif:
Other Builtins
__builtin_powil:
Other Builtins
__builtin_powil:
Other Builtins
__builtin_prefetch:
Other Builtins
__builtin_return:
Constructing Calls
__builtin_return_address:
Return Address
__builtin_rx_brk:
RX Built-in Functions
__builtin_rx_clrpsw:
RX Built-in Functions
__builtin_rx_int:
RX Built-in Functions
__builtin_rx_machi:
RX Built-in Functions
__builtin_rx_maclo:
RX Built-in Functions
__builtin_rx_mulhi:
RX Built-in Functions
__builtin_rx_mullo:
RX Built-in Functions
__builtin_rx_mvfachi:
RX Built-in Functions
__builtin_rx_mvfacmi:
RX Built-in Functions
__builtin_rx_mvfc:
RX Built-in Functions
__builtin_rx_mvtachi:
RX Built-in Functions
__builtin_rx_mvtaclo:
RX Built-in Functions
__builtin_rx_mvtc:
RX Built-in Functions
__builtin_rx_mvtipl:
RX Built-in Functions
__builtin_rx_racw:
RX Built-in Functions
__builtin_rx_revw:
RX Built-in Functions
__builtin_rx_rmpa:
RX Built-in Functions
__builtin_rx_round:
RX Built-in Functions
__builtin_rx_sat:
RX Built-in Functions
__builtin_rx_setpsw:
RX Built-in Functions
__builtin_rx_wait:
RX Built-in Functions
__builtin_saddll_overflow:
Integer Overflow Builtins
__builtin_saddl_overflow:
Integer Overflow Builtins
__builtin_sadd_overflow:
Integer Overflow Builtins
__builtin_setjmp:
Nonlocal Gotos
__builtin_set_thread_pointer:
SH Built-in Functions
__builtin_shuffle:
Vector Extensions
__builtin_sh_get_fpscr:
SH Built-in Functions
__builtin_sh_set_fpscr:
SH Built-in Functions
__builtin_smulll_overflow:
Integer Overflow Builtins
__builtin_smull_overflow:
Integer Overflow Builtins
__builtin_smul_overflow:
Integer Overflow Builtins
__builtin_speculation_safe_value:
Other Builtins
__builtin_speculation_safe_value:
Other Builtins
__builtin_sqrtf128_round_to_odd:
Basic PowerPC Built-in Functions Available on ISA 3.0
__builtin_ssubll_overflow:
Integer Overflow Builtins
__builtin_ssubl_overflow:
Integer Overflow Builtins
__builtin_ssub_overflow:
Integer Overflow Builtins
__builtin_subf128_round_to_odd:
Basic PowerPC Built-in Functions Available on ISA 3.0
__builtin_sub_overflow:
Integer Overflow Builtins
__builtin_sub_overflow_p:
Integer Overflow Builtins
__builtin_tabort:
S/390 System z Built-in Functions
__builtin_tbegin:
S/390 System z Built-in Functions
__builtin_tbeginc:
S/390 System z Built-in Functions
__builtin_tbegin_nofloat:
S/390 System z Built-in Functions
__builtin_tbegin_retry:
S/390 System z Built-in Functions
__builtin_tbegin_retry_nofloat:
S/390 System z Built-in Functions
__builtin_tend:
S/390 System z Built-in Functions
__builtin_tgmath:
Other Builtins
__builtin_thread_pointer:
SH Built-in Functions
__builtin_trap:
Other Builtins
__builtin_truncf128_round_to_odd:
Basic PowerPC Built-in Functions Available on ISA 3.0
__builtin_tx_assist:
S/390 System z Built-in Functions
__builtin_tx_nesting_depth:
S/390 System z Built-in Functions
__builtin_types_compatible_p:
Other Builtins
__builtin_uaddll_overflow:
Integer Overflow Builtins
__builtin_uaddl_overflow:
Integer Overflow Builtins
__builtin_uadd_overflow:
Integer Overflow Builtins
__builtin_umulll_overflow:
Integer Overflow Builtins
__builtin_umull_overflow:
Integer Overflow Builtins
__builtin_umul_overflow:
Integer Overflow Builtins
__builtin_unreachable:
Other Builtins
__builtin_usubll_overflow:
Integer Overflow Builtins
__builtin_usubl_overflow:
Integer Overflow Builtins
__builtin_usub_overflow:
Integer Overflow Builtins
__builtin_va_arg_pack:
Constructing Calls
__builtin_va_arg_pack_len:
Constructing Calls
__builtin___clear_cache:
Other Builtins
__builtin___fprintf_chk:
Object Size Checking
__builtin___memcpy_chk:
Object Size Checking
__builtin___memmove_chk:
Object Size Checking
__builtin___mempcpy_chk:
Object Size Checking
__builtin___memset_chk:
Object Size Checking
__builtin___printf_chk:
Object Size Checking
__builtin___snprintf_chk:
Object Size Checking
__builtin___sprintf_chk:
Object Size Checking
__builtin___stpcpy_chk:
Object Size Checking
__builtin___strcat_chk:
Object Size Checking
__builtin___strcpy_chk:
Object Size Checking
__builtin___strncat_chk:
Object Size Checking
__builtin___strncpy_chk:
Object Size Checking
__builtin___vfprintf_chk:
Object Size Checking
__builtin___vprintf_chk:
Object Size Checking
__builtin___vsnprintf_chk:
Object Size Checking
__builtin___vsprintf_chk:
Object Size Checking
__complex__ keyword:
Complex
__declspec(dllexport):
Microsoft Windows Function Attributes
__declspec(dllimport):
Microsoft Windows Function Attributes
__extension__:
Alternate Keywords
__far M32C Named Address Spaces:
Named Address Spaces
__far RL78 Named Address Spaces:
Named Address Spaces
__flash AVR Named Address Spaces:
Named Address Spaces
__flash1 AVR Named Address Spaces:
Named Address Spaces
__flash2 AVR Named Address Spaces:
Named Address Spaces
__flash3 AVR Named Address Spaces:
Named Address Spaces
__flash4 AVR Named Address Spaces:
Named Address Spaces
__flash5 AVR Named Address Spaces:
Named Address Spaces
__float128 data type:
Floating Types
__float80 data type:
Floating Types
__fp16 data type:
Half-Precision
__FUNCTION__ identifier:
Function Names
__func__ identifier:
Function Names
__ibm128 data type:
Floating Types
__imag__ keyword:
Complex
__int128 data types:
__int128
__memx AVR Named Address Spaces:
Named Address Spaces
__PRETTY_FUNCTION__ identifier:
Function Names
__real__ keyword:
Complex
__seg_fs x86 named address space:
Named Address Spaces
__seg_gs x86 named address space:
Named Address Spaces
__STDC_HOSTED__:
Standards
__sync_add_and_fetch:
__sync Builtins
__sync_and_and_fetch:
__sync Builtins
__sync_bool_compare_and_swap:
__sync Builtins
__sync_fetch_and_add:
__sync Builtins
__sync_fetch_and_and:
__sync Builtins
__sync_fetch_and_nand:
__sync Builtins
__sync_fetch_and_or:
__sync Builtins
__sync_fetch_and_sub:
__sync Builtins
__sync_fetch_and_xor:
__sync Builtins
__sync_lock_release:
__sync Builtins
__sync_lock_test_and_set:
__sync Builtins
__sync_nand_and_fetch:
__sync Builtins
__sync_or_and_fetch:
__sync Builtins
__sync_sub_and_fetch:
__sync Builtins
__sync_synchronize:
__sync Builtins
__sync_val_compare_and_swap:
__sync Builtins
__sync_xor_and_fetch:
__sync Builtins
__thread:
Thread-Local
A
AArch64 Options:
AArch64 Options
ABI:
Compatibility
abi_tag function attribute:
C++ Attributes
abi_tag type attribute:
C++ Attributes
abi_tag variable attribute:
C++ Attributes
abort:
Other Builtins
abs:
Other Builtins
absdata variable attribute, AVR:
AVR Variable Attributes
accessing volatiles:
Volatiles
accessing volatiles:
C++ Volatiles
acos:
Other Builtins
acosf:
Other Builtins
acosh:
Other Builtins
acoshf:
Other Builtins
acoshl:
Other Builtins
acosl:
Other Builtins
Ada:
G++ and GCC
Ada:
G++ and GCC
additional floating types:
Floating Types
address constraints:
Simple Constraints
address of a label:
Labels as Values
address variable attribute, AVR:
AVR Variable Attributes
address_operand:
Simple Constraints
alias function attribute:
Common Function Attributes
alias variable attribute:
Common Variable Attributes
aligned function attribute:
Common Function Attributes
aligned type attribute:
Common Type Attributes
aligned variable attribute:
Common Variable Attributes
alignment:
Alignment
alloca:
Other Builtins
alloca vs variable-length arrays:
Variable Length
alloc_align function attribute:
Common Function Attributes
alloc_size function attribute:
Common Function Attributes
alloc_size type attribute:
Common Type Attributes
alloc_size variable attribute:
Common Variable Attributes
Allow nesting in an interrupt handler on the Blackfin processor:
Blackfin Function Attributes
Altera Nios II options:
Nios II Options
alternate keywords:
Alternate Keywords
altivec type attribute, PowerPC:
PowerPC Type Attributes
altivec variable attribute, PowerPC:
PowerPC Variable Attributes
always_inline function attribute:
Common Function Attributes
AMD GCN Options:
AMD GCN Options
AMD1:
Standards
amdgpu_hsa_kernel function attribute, AMD GCN:
AMD GCN Function Attributes
ANSI C:
Standards
ANSI C standard:
Standards
ANSI C89:
Standards
ANSI support:
C Dialect Options
ANSI X3.159-1989:
Standards
apostrophes:
Incompatibilities
application binary interface:
Compatibility
ARC options:
ARC Options
arch= function attribute, AArch64:
AArch64 Function Attributes
arch= function attribute, ARM:
ARM Function Attributes
ARM options:
ARM Options
ARM [Annotated C++ Reference Manual]:
Backwards Compatibility
arrays of length zero:
Zero Length
arrays of variable length:
Variable Length
arrays, non-lvalue:
Subscripting
artificial function attribute:
Common Function Attributes
asin:
Other Builtins
asinf:
Other Builtins
asinh:
Other Builtins
asinhf:
Other Builtins
asinhl:
Other Builtins
asinl:
Other Builtins
asm assembler template:
Extended Asm
asm clobbers:
Extended Asm
asm constraints:
Constraints
asm expressions:
Extended Asm
asm flag output operands:
Extended Asm
asm goto labels:
Extended Asm
asm inline:
Size of an asm
asm input operands:
Extended Asm
asm keyword:
Using Assembly Language with C
asm output operands:
Extended Asm
asm scratch registers:
Extended Asm
asm volatile:
Extended Asm
assembler names for identifiers:
Asm Labels
assembly code, invalid:
Bug Criteria
assembly language in C:
Using Assembly Language with C
assembly language in C, basic:
Basic Asm
assembly language in C, extended:
Extended Asm
assume_aligned function attribute:
Common Function Attributes
atan:
Other Builtins
atan2:
Other Builtins
atan2f:
Other Builtins
atan2l:
Other Builtins
atanf:
Other Builtins
atanh:
Other Builtins
atanhf:
Other Builtins
atanhl:
Other Builtins
atanl:
Other Builtins
attribute of types:
Type Attributes
attribute of variables:
Variable Attributes
attribute syntax:
Attribute Syntax
autoincrement/decrement addressing:
Simple Constraints
automatic inline for C++ member fns:
Inline
aux variable attribute, ARC:
ARC Variable Attributes
AVR Options:
AVR Options
B
Backwards Compatibility:
Backwards Compatibility
bank_switch function attribute, M32C:
M32C Function Attributes
base class members:
Name lookup
based type attribute, MeP:
MeP Type Attributes
based variable attribute, MeP:
MeP Variable Attributes
basic asm:
Basic Asm
bcmp:
Other Builtins
below100 variable attribute, Xstormy16:
Xstormy16 Variable Attributes
binary compatibility:
Compatibility
Binary constants using the ‘0b’ prefix:
Binary constants
Blackfin Options:
Blackfin Options
bound pointer to member function:
Bound member functions
branch-protection function attribute, AArch64:
AArch64 Function Attributes
break handler functions:
MicroBlaze Function Attributes
break_handler function attribute, MicroBlaze:
MicroBlaze Function Attributes
brk_interrupt function attribute, RL78:
RL78 Function Attributes
bug criteria:
Bug Criteria
bugs:
Bugs
bugs, known:
Trouble
built-in functions:
C Dialect Options
built-in functions:
Other Builtins
bzero:
Other Builtins
C
C compilation options:
Invoking GCC
C intermediate output, nonexistent:
G++ and GCC
C language extensions:
C Extensions
C language, traditional:
Preprocessor Options
C standard:
Standards
C standards:
Standards
c++:
Invoking G++
C++:
G++ and GCC
C++ comments:
C++ Comments
C++ interface and implementation headers:
C++ Interface
C++ language extensions:
C++ Extensions
C++ member fns, automatically inline:
Inline
C++ misunderstandings:
C++ Misunderstandings
C++ options, command-line:
C++ Dialect Options
C++ pragmas, effect on inlining:
C++ Interface
C++ source file suffixes:
Invoking G++
C++ static data, declaring and defining:
Static Definitions
C-SKY Options:
C-SKY Options
C11:
Standards
C17:
Standards
C1X:
Standards
C2X:
Standards
C6X Options:
C6X Options
C89:
Standards
C90:
Standards
C94:
Standards
C95:
Standards
C99:
Standards
C9X:
Standards
cabs:
Other Builtins
cabsf:
Other Builtins
cabsl:
Other Builtins
cacos:
Other Builtins
cacosf:
Other Builtins
cacosh:
Other Builtins
cacoshf:
Other Builtins
cacoshl:
Other Builtins
cacosl:
Other Builtins
callee_pop_aggregate_return function attribute, x86:
x86 Function Attributes
calling functions through the function vector on SH2A:
SH Function Attributes
calloc:
Other Builtins
carg:
Other Builtins
cargf:
Other Builtins
cargl:
Other Builtins
case labels in initializers:
Designated Inits
case ranges:
Case Ranges
casin:
Other Builtins
casinf:
Other Builtins
casinh:
Other Builtins
casinhf:
Other Builtins
casinhl:
Other Builtins
casinl:
Other Builtins
cast to a union:
Cast to Union
catan:
Other Builtins
catanf:
Other Builtins
catanh:
Other Builtins
catanhf:
Other Builtins
catanhl:
Other Builtins
catanl:
Other Builtins
cb variable attribute, MeP:
MeP Variable Attributes
cbrt:
Other Builtins
cbrtf:
Other Builtins
cbrtl:
Other Builtins
ccos:
Other Builtins
ccosf:
Other Builtins
ccosh:
Other Builtins
ccoshf:
Other Builtins
ccoshl:
Other Builtins
ccosl:
Other Builtins
cdecl function attribute, x86-32:
x86 Function Attributes
ceil:
Other Builtins
ceilf:
Other Builtins
ceill:
Other Builtins
cexp:
Other Builtins
cexpf:
Other Builtins
cexpl:
Other Builtins
cf_check function attribute, x86:
x86 Function Attributes
character set, execution:
Preprocessor Options
character set, input:
Preprocessor Options
character set, input normalization:
Warning Options
character set, wide execution:
Preprocessor Options
cimag:
Other Builtins
cimagf:
Other Builtins
cimagl:
Other Builtins
cleanup variable attribute:
Common Variable Attributes
clog:
Other Builtins
clog10:
Other Builtins
clog10f:
Other Builtins
clog10l:
Other Builtins
clogf:
Other Builtins
clogl:
Other Builtins
cmodel= function attribute, AArch64:
AArch64 Function Attributes
COBOL:
G++ and GCC
code generation conventions:
Code Gen Options
code, mixed with declarations:
Mixed Declarations
cold function attribute:
Common Function Attributes
cold label attribute:
Label Attributes
command options:
Invoking GCC
comments, C++ style:
C++ Comments
common variable attribute:
Common Variable Attributes
comparison of signed and unsigned values, warning:
Warning Options
compilation statistics:
Developer Options
compiler bugs, reporting:
Bug Reporting
compiler compared to C++ preprocessor:
G++ and GCC
compiler options, C++:
C++ Dialect Options
compiler options, Objective-C and Objective-C++:
Objective-C and Objective-C++ Dialect Options
compiler version, specifying:
Invoking GCC
COMPILER_PATH:
Environment Variables
complex conjugation:
Complex
complex numbers:
Complex
compound literals:
Compound Literals
computed gotos:
Labels as Values
conditional expressions, extensions:
Conditionals
conflicting types:
Disappointments
conj:
Other Builtins
conjf:
Other Builtins
conjl:
Other Builtins
const applied to function:
Function Attributes
const function attribute:
Common Function Attributes
const qualifier:
Pointers to Arrays
constants in constraints:
Simple Constraints
constraint modifier characters:
Modifiers
constraint, matching:
Simple Constraints
constraints, asm:
Constraints
constraints, machine specific:
Machine Constraints
constructing calls:
Constructing Calls
constructor expressions:
Compound Literals
constructor function attribute:
Common Function Attributes
contributors:
Contributors
copy function attribute:
Common Function Attributes
copy type attribute:
Common Type Attributes
copy variable attribute:
Common Variable Attributes
copysign:
Other Builtins
copysignf:
Other Builtins
copysignl:
Other Builtins
core dump:
Bug Criteria
cos:
Other Builtins
cosf:
Other Builtins
cosh:
Other Builtins
coshf:
Other Builtins
coshl:
Other Builtins
cosl:
Other Builtins
CPATH:
Environment Variables
CPLUS_INCLUDE_PATH:
Environment Variables
cpow:
Other Builtins
cpowf:
Other Builtins
cpowl:
Other Builtins
cproj:
Other Builtins
cprojf:
Other Builtins
cprojl:
Other Builtins
cpu= function attribute, AArch64:
AArch64 Function Attributes
CR16 Options:
CR16 Options
creal:
Other Builtins
crealf:
Other Builtins
creall:
Other Builtins
CRIS Options:
CRIS Options
critical function attribute, MSP430:
MSP430 Function Attributes
cross compiling:
Invoking GCC
csin:
Other Builtins
csinf:
Other Builtins
csinh:
Other Builtins
csinhf:
Other Builtins
csinhl:
Other Builtins
csinl:
Other Builtins
csqrt:
Other Builtins
csqrtf:
Other Builtins
csqrtl:
Other Builtins
ctan:
Other Builtins
ctanf:
Other Builtins
ctanh:
Other Builtins
ctanhf:
Other Builtins
ctanhl:
Other Builtins
ctanl:
Other Builtins
C_INCLUDE_PATH:
Environment Variables
D
D:
G++ and GCC
Darwin options:
Darwin Options
dcgettext:
Other Builtins
dd integer suffix:
Decimal Float
DD integer suffix:
Decimal Float
deallocating variable length arrays:
Variable Length
debug dump options:
Developer Options
debugging GCC:
Developer Options
debugging information options:
Debugging Options
decimal floating types:
Decimal Float
declaration scope:
Incompatibilities
declarations inside expressions:
Statement Exprs
declarations, mixed with code:
Mixed Declarations
declaring attributes of functions:
Function Attributes
declaring static data in C++:
Static Definitions
defining static data in C++:
Static Definitions
dependencies for make as output:
Environment Variables
dependencies for make as output:
Environment Variables
dependencies, make:
Preprocessor Options
DEPENDENCIES_OUTPUT:
Environment Variables
dependent name lookup:
Name lookup
deprecated enumerator attribute:
Enumerator Attributes
deprecated function attribute:
Common Function Attributes
deprecated type attribute:
Common Type Attributes
deprecated variable attribute:
Common Variable Attributes
designated initializers:
Designated Inits
designated_init type attribute:
Common Type Attributes
designator lists:
Designated Inits
designators:
Designated Inits
destructor function attribute:
Common Function Attributes
developer options:
Developer Options
df integer suffix:
Decimal Float
DF integer suffix:
Decimal Float
dgettext:
Other Builtins
diagnostic messages:
Diagnostic Message Formatting Options
dialect options:
C Dialect Options
diff-delete GCC_COLORS capability:
Diagnostic Message Formatting Options
diff-filename GCC_COLORS capability:
Diagnostic Message Formatting Options
diff-hunk GCC_COLORS capability:
Diagnostic Message Formatting Options
diff-insert GCC_COLORS capability:
Diagnostic Message Formatting Options
digits in constraint:
Simple Constraints
directory options:
Directory Options
disinterrupt function attribute, Epiphany:
Epiphany Function Attributes
disinterrupt function attribute, MeP:
MeP Function Attributes
dl integer suffix:
Decimal Float
DL integer suffix:
Decimal Float
dllexport function attribute:
Microsoft Windows Function Attributes
dllexport variable attribute:
Microsoft Windows Variable Attributes
dllimport function attribute:
Microsoft Windows Function Attributes
dllimport variable attribute:
Microsoft Windows Variable Attributes
dollar signs in identifier names:
Dollar Signs
double-word arithmetic:
Long Long
downward funargs:
Nested Functions
drem:
Other Builtins
dremf:
Other Builtins
dreml:
Other Builtins
dump options:
Developer Options
E
‘E’ in constraint:
Simple Constraints
earlyclobber operand:
Modifiers
eBPF Options:
eBPF Options
eight-bit data on the H8/300, H8/300H, and H8S:
H8/300 Variable Attributes
eightbit_data variable attribute, H8/300:
H8/300 Variable Attributes
EIND:
AVR Options
either function attribute, MSP430:
MSP430 Function Attributes
either variable attribute, MSP430:
MSP430 Variable Attributes
empty structures:
Empty Structures
Enumerator Attributes:
Enumerator Attributes
environment variables:
Environment Variables
erf:
Other Builtins
erfc:
Other Builtins
erfcf:
Other Builtins
erfcl:
Other Builtins
erff:
Other Builtins
erfl:
Other Builtins
error function attribute:
Common Function Attributes
error GCC_COLORS capability:
Diagnostic Message Formatting Options
error messages:
Warnings and Errors
escaped newlines:
Escaped Newlines
exception function attribute:
NDS32 Function Attributes
exception handler functions, Blackfin:
Blackfin Function Attributes
exception handler functions, NDS32:
NDS32 Function Attributes
exception_handler function attribute:
Blackfin Function Attributes
exit:
Other Builtins
exp:
Other Builtins
exp10:
Other Builtins
exp10f:
Other Builtins
exp10l:
Other Builtins
exp2:
Other Builtins
exp2f:
Other Builtins
exp2l:
Other Builtins
expf:
Other Builtins
expl:
Other Builtins
explicit register variables:
Explicit Register Variables
expm1:
Other Builtins
expm1f:
Other Builtins
expm1l:
Other Builtins
expressions containing statements:
Statement Exprs
expressions, constructor:
Compound Literals
extended asm:
Extended Asm
extensible constraints:
Simple Constraints
extensions, ?::
Conditionals
extensions, C language:
C Extensions
extensions, C++ language:
C++ Extensions
external declaration scope:
Incompatibilities
externally_visible function attribute:
Common Function Attributes
extra NOP instructions at the function entry point:
Common Function Attributes
F
‘F’ in constraint:
Simple Constraints
fabs:
Other Builtins
fabsf:
Other Builtins
fabsl:
Other Builtins
fallthrough statement attribute:
Statement Attributes
far function attribute, MeP:
MeP Function Attributes
far function attribute, MIPS:
MIPS Function Attributes
far type attribute, MeP:
MeP Type Attributes
far variable attribute, MeP:
MeP Variable Attributes
fastcall function attribute, x86-32:
x86 Function Attributes
fast_interrupt function attribute, M32C:
M32C Function Attributes
fast_interrupt function attribute, MicroBlaze:
MicroBlaze Function Attributes
fast_interrupt function attribute, RX:
RX Function Attributes
fatal signal:
Bug Criteria
fdim:
Other Builtins
fdimf:
Other Builtins
fdiml:
Other Builtins
FDL, GNU Free Documentation License:
GNU Free Documentation License
fentry_name function attribute, x86:
x86 Function Attributes
fentry_section function attribute, x86:
x86 Function Attributes
ffs:
Other Builtins
file name suffix:
Overall Options
file names:
Link Options
fix-cortex-a53-835769 function attribute, AArch64:
AArch64 Function Attributes
fixed-point types:
Fixed-Point
fixit-delete GCC_COLORS capability:
Diagnostic Message Formatting Options
fixit-insert GCC_COLORS capability:
Diagnostic Message Formatting Options
flatten function attribute:
Common Function Attributes
flexible array members:
Zero Length
float as function value type:
Incompatibilities
floating point precision:
Disappointments
floating-point precision:
Optimize Options
floor:
Other Builtins
floorf:
Other Builtins
floorl:
Other Builtins
fma:
Other Builtins
fmaf:
Other Builtins
fmal:
Other Builtins
fmax:
Other Builtins
fmaxf:
Other Builtins
fmaxl:
Other Builtins
fmin:
Other Builtins
fminf:
Other Builtins
fminl:
Other Builtins
fmod:
Other Builtins
fmodf:
Other Builtins
fmodl:
Other Builtins
force_align_arg_pointer function attribute, x86:
x86 Function Attributes
format function attribute:
Common Function Attributes
format_arg function attribute:
Common Function Attributes
Fortran:
G++ and GCC
forwarder_section function attribute, Epiphany:
Epiphany Function Attributes
forwarding calls:
Constructing Calls
fprintf:
Other Builtins
fprintf_unlocked:
Other Builtins
fputs:
Other Builtins
fputs_unlocked:
Other Builtins
FR30 Options:
FR30 Options
free:
Other Builtins
freestanding environment:
Standards
freestanding implementation:
Standards
frexp:
Other Builtins
frexpf:
Other Builtins
frexpl:
Other Builtins
FRV Options:
FRV Options
fscanf:
Other Builtins
fscanf, and constant strings:
Incompatibilities
FT32 Options:
FT32 Options
function addressability on the M32R/D:
M32R/D Function Attributes
function attributes:
Function Attributes
function pointers, arithmetic:
Pointer Arith
function prototype declarations:
Function Prototypes
function versions:
Function Multiversioning
function, size of pointer to:
Pointer Arith
functions in arbitrary sections:
Common Function Attributes
functions that are dynamically resolved:
Common Function Attributes
functions that are passed arguments in registers on x86-32:
x86 Function Attributes
functions that behave like malloc:
Common Function Attributes
functions that have no side effects:
Common Function Attributes
functions that have no side effects:
Common Function Attributes
functions that never return:
Common Function Attributes
functions that pop the argument stack on x86-32:
x86 Function Attributes
functions that pop the argument stack on x86-32:
x86 Function Attributes
functions that pop the argument stack on x86-32:
x86 Function Attributes
functions that pop the argument stack on x86-32:
x86 Function Attributes
functions that return more than once:
Common Function Attributes
functions with non-null pointer arguments:
Common Function Attributes
functions with printf, scanf, strftime or strfmon style arguments:
Common Function Attributes
function_return function attribute, x86:
x86 Function Attributes
function_vector function attribute, H8/300:
H8/300 Function Attributes
function_vector function attribute, M16C/M32C:
M32C Function Attributes
function_vector function attribute, SH:
SH Function Attributes
G
‘G’ in constraint:
Simple Constraints
‘g’ in constraint:
Simple Constraints
g++:
Invoking G++
G++:
G++ and GCC
gamma:
Other Builtins
gammaf:
Other Builtins
gammaf_r:
Other Builtins
gammal:
Other Builtins
gammal_r:
Other Builtins
gamma_r:
Other Builtins
GCC:
G++ and GCC
GCC command options:
Invoking GCC
GCC_COLORS environment variable:
Diagnostic Message Formatting Options
GCC_COMPARE_DEBUG:
Environment Variables
GCC_EXEC_PREFIX:
Environment Variables
gcc_struct type attribute, PowerPC:
PowerPC Type Attributes
gcc_struct type attribute, x86:
x86 Type Attributes
gcc_struct variable attribute, PowerPC:
PowerPC Variable Attributes
gcc_struct variable attribute, x86:
x86 Variable Attributes
GCC_URLS environment variable:
Diagnostic Message Formatting Options
gcov:
Instrumentation Options
general-regs-only function attribute, AArch64:
AArch64 Function Attributes
general-regs-only function attribute, ARM:
ARM Function Attributes
gettext:
Other Builtins
global offset table:
Code Gen Options
global register after longjmp:
Global Register Variables
global register variables:
Global Register Variables
GNAT:
G++ and GCC
GNU C Compiler:
G++ and GCC
GNU Compiler Collection:
G++ and GCC
gnu_inline function attribute:
Common Function Attributes
Go:
G++ and GCC
goto with computed label:
Labels as Values
gprof:
Instrumentation Options
grouping options:
Invoking GCC
H
‘H’ in constraint:
Simple Constraints
half-precision floating point:
Half-Precision
hardware models and configurations, specifying:
Submodel Options
hex floats:
Hex Floats
highlight, color:
Diagnostic Message Formatting Options
hk fixed-suffix:
Fixed-Point
HK fixed-suffix:
Fixed-Point
hosted environment:
Standards
hosted environment:
C Dialect Options
hosted environment:
C Dialect Options
hosted implementation:
Standards
hot function attribute:
Common Function Attributes
hot label attribute:
Label Attributes
hotpatch function attribute, S/390:
S/390 Function Attributes
HPPA Options:
HPPA Options
hr fixed-suffix:
Fixed-Point
HR fixed-suffix:
Fixed-Point
hypot:
Other Builtins
hypotf:
Other Builtins
hypotl:
Other Builtins
I
‘i’ in constraint:
Simple Constraints
‘I’ in constraint:
Simple Constraints
IA-64 Options:
IA-64 Options
IBM RS/6000 and PowerPC Options:
RS/6000 and PowerPC Options
identifier names, dollar signs in:
Dollar Signs
identifiers, names in assembler code:
Asm Labels
ifunc function attribute:
Common Function Attributes
ilogb:
Other Builtins
ilogbf:
Other Builtins
ilogbl:
Other Builtins
imaxabs:
Other Builtins
implementation-defined behavior, C language:
C Implementation
implementation-defined behavior, C++ language:
C++ Implementation
implied #pragma implementation:
C++ Interface
incompatibilities of GCC:
Incompatibilities
increment operators:
Bug Criteria
index:
Other Builtins
indirect calls, ARC:
ARC Function Attributes
indirect calls, ARM:
ARM Function Attributes
indirect calls, Blackfin:
Blackfin Function Attributes
indirect calls, Epiphany:
Epiphany Function Attributes
indirect calls, MIPS:
MIPS Function Attributes
indirect calls, PowerPC:
PowerPC Function Attributes
indirect functions:
Common Function Attributes
indirect_branch function attribute, x86:
x86 Function Attributes
indirect_return function attribute, x86:
x86 Function Attributes
initializations in expressions:
Compound Literals
initializers with labeled elements:
Designated Inits
initializers, non-constant:
Initializers
init_priority variable attribute:
C++ Attributes
inline assembly language:
Using Assembly Language with C
inline automatic for C++ member fns:
Inline
inline functions:
Inline
inline functions, omission of:
Inline
inlining and C++ pragmas:
C++ Interface
installation trouble:
Trouble
instrumentation options:
Instrumentation Options
integrating function code:
Inline
interface and implementation headers, C++:
C++ Interface
intermediate C version, nonexistent:
G++ and GCC
interrupt function attribute, ARC:
ARC Function Attributes
interrupt function attribute, ARM:
ARM Function Attributes
interrupt function attribute, AVR:
AVR Function Attributes
interrupt function attribute, C-SKY:
C-SKY Function Attributes
interrupt function attribute, CR16:
CR16 Function Attributes
interrupt function attribute, Epiphany:
Epiphany Function Attributes
interrupt function attribute, M32C:
M32C Function Attributes
interrupt function attribute, M32R/D:
M32R/D Function Attributes
interrupt function attribute, m68k:
m68k Function Attributes
interrupt function attribute, MeP:
MeP Function Attributes
interrupt function attribute, MIPS:
MIPS Function Attributes
interrupt function attribute, MSP430:
MSP430 Function Attributes
interrupt function attribute, NDS32:
NDS32 Function Attributes
interrupt function attribute, RISC-V:
RISC-V Function Attributes
interrupt function attribute, RL78:
RL78 Function Attributes
interrupt function attribute, RX:
RX Function Attributes
interrupt function attribute, V850:
V850 Function Attributes
interrupt function attribute, Visium:
Visium Function Attributes
interrupt function attribute, x86:
x86 Function Attributes
interrupt function attribute, Xstormy16:
Xstormy16 Function Attributes
interrupt_handler function attribute, Blackfin:
Blackfin Function Attributes
interrupt_handler function attribute, H8/300:
H8/300 Function Attributes
interrupt_handler function attribute, m68k:
m68k Function Attributes
interrupt_handler function attribute, MicroBlaze:
MicroBlaze Function Attributes
interrupt_handler function attribute, SH:
SH Function Attributes
interrupt_handler function attribute, V850:
V850 Function Attributes
interrupt_thread function attribute, fido:
m68k Function Attributes
introduction:
Top
invalid assembly code:
Bug Criteria
invalid input:
Bug Criteria
invoking g++:
Invoking G++
io variable attribute, AVR:
AVR Variable Attributes
io variable attribute, MeP:
MeP Variable Attributes
io_low variable attribute, AVR:
AVR Variable Attributes
isalnum:
Other Builtins
isalpha:
Other Builtins
isascii:
Other Builtins
isblank:
Other Builtins
iscntrl:
Other Builtins
isdigit:
Other Builtins
isgraph:
Other Builtins
islower:
Other Builtins
ISO 9899:
Standards
ISO C:
Standards
ISO C standard:
Standards
ISO C11:
Standards
ISO C17:
Standards
ISO C1X:
Standards
ISO C2X:
Standards
ISO C90:
Standards
ISO C94:
Standards
ISO C95:
Standards
ISO C99:
Standards
ISO C9X:
Standards
ISO support:
C Dialect Options
ISO/IEC 9899:
Standards
isprint:
Other Builtins
ispunct:
Other Builtins
isr function attribute, ARM:
ARM Function Attributes
isr function attribute, C-SKY:
C-SKY Function Attributes
isspace:
Other Builtins
isupper:
Other Builtins
iswalnum:
Other Builtins
iswalpha:
Other Builtins
iswblank:
Other Builtins
iswcntrl:
Other Builtins
iswdigit:
Other Builtins
iswgraph:
Other Builtins
iswlower:
Other Builtins
iswprint:
Other Builtins
iswpunct:
Other Builtins
iswspace:
Other Builtins
iswupper:
Other Builtins
iswxdigit:
Other Builtins
isxdigit:
Other Builtins
J
j0:
Other Builtins
j0f:
Other Builtins
j0l:
Other Builtins
j1:
Other Builtins
j1f:
Other Builtins
j1l:
Other Builtins
jli_always function attribute, ARC:
ARC Function Attributes
jli_fixed function attribute, ARC:
ARC Function Attributes
jn:
Other Builtins
jnf:
Other Builtins
jnl:
Other Builtins
K
k fixed-suffix:
Fixed-Point
K fixed-suffix:
Fixed-Point
keep_interrupts_masked function attribute, MIPS:
MIPS Function Attributes
kernel attribute, Nvidia PTX:
Nvidia PTX Function Attributes
keywords, alternate:
Alternate Keywords
known causes of trouble:
Trouble
kspisusp function attribute, Blackfin:
Blackfin Function Attributes
L
l1_data variable attribute, Blackfin:
Blackfin Variable Attributes
l1_data_A variable attribute, Blackfin:
Blackfin Variable Attributes
l1_data_B variable attribute, Blackfin:
Blackfin Variable Attributes
l1_text function attribute, Blackfin:
Blackfin Function Attributes
l2 function attribute, Blackfin:
Blackfin Function Attributes
l2 variable attribute, Blackfin:
Blackfin Variable Attributes
Label Attributes:
Label Attributes
labeled elements in initializers:
Designated Inits
labels as values:
Labels as Values
labs:
Other Builtins
LANG:
Environment Variables
LANG:
Environment Variables
language dialect options:
C Dialect Options
LC_ALL:
Environment Variables
LC_CTYPE:
Environment Variables
LC_MESSAGES:
Environment Variables
ldexp:
Other Builtins
ldexpf:
Other Builtins
ldexpl:
Other Builtins
leaf function attribute:
Common Function Attributes
length-zero arrays:
Zero Length
lgamma:
Other Builtins
lgammaf:
Other Builtins
lgammaf_r:
Other Builtins
lgammal:
Other Builtins
lgammal_r:
Other Builtins
lgamma_r:
Other Builtins
Libraries:
Link Options
LIBRARY_PATH:
Environment Variables
link options:
Link Options
linker script:
Link Options
lk fixed-suffix:
Fixed-Point
LK fixed-suffix:
Fixed-Point
LL integer suffix:
Long Long
llabs:
Other Builtins
llk fixed-suffix:
Fixed-Point
LLK fixed-suffix:
Fixed-Point
llr fixed-suffix:
Fixed-Point
LLR fixed-suffix:
Fixed-Point
llrint:
Other Builtins
llrintf:
Other Builtins
llrintl:
Other Builtins
llround:
Other Builtins
llroundf:
Other Builtins
llroundl:
Other Builtins
LM32 options:
LM32 Options
load address instruction:
Simple Constraints
local labels:
Local Labels
local variables in macros:
Typeof
local variables, specifying registers:
Local Register Variables
locale:
Environment Variables
locale definition:
Environment Variables
locus GCC_COLORS capability:
Diagnostic Message Formatting Options
log:
Other Builtins
log10:
Other Builtins
log10f:
Other Builtins
log10l:
Other Builtins
log1p:
Other Builtins
log1pf:
Other Builtins
log1pl:
Other Builtins
log2:
Other Builtins
log2f:
Other Builtins
log2l:
Other Builtins
logb:
Other Builtins
logbf:
Other Builtins
logbl:
Other Builtins
logf:
Other Builtins
logl:
Other Builtins
long:
BPF Built-in Functions
long:
BPF Built-in Functions
long:
BPF Built-in Functions
long long data types:
Long Long
longcall function attribute, Blackfin:
Blackfin Function Attributes
longcall function attribute, PowerPC:
PowerPC Function Attributes
longjmp:
Global Register Variables
longjmp incompatibilities:
Incompatibilities
longjmp warnings:
Warning Options
long_call function attribute, ARC:
ARC Function Attributes
long_call function attribute, ARM:
ARM Function Attributes
long_call function attribute, Epiphany:
Epiphany Function Attributes
long_call function attribute, MIPS:
MIPS Function Attributes
lower function attribute, MSP430:
MSP430 Function Attributes
lower variable attribute, MSP430:
MSP430 Variable Attributes
lr fixed-suffix:
Fixed-Point
LR fixed-suffix:
Fixed-Point
lrint:
Other Builtins
lrintf:
Other Builtins
lrintl:
Other Builtins
lround:
Other Builtins
lroundf:
Other Builtins
lroundl:
Other Builtins
M
‘m’ in constraint:
Simple Constraints
M32C options:
M32C Options
M32R/D options:
M32R/D Options
M680x0 options:
M680x0 Options
machine specific constraints:
Machine Constraints
machine-dependent options:
Submodel Options
macro with variable arguments:
Variadic Macros
macros, inline alternative:
Inline
macros, local labels:
Local Labels
macros, local variables in:
Typeof
macros, statements in expressions:
Statement Exprs
macros, types of arguments:
Typeof
make:
Preprocessor Options
malloc:
Other Builtins
malloc function attribute:
Common Function Attributes
matching constraint:
Simple Constraints
may_alias type attribute:
Common Type Attributes
MCore options:
MCore Options
medium_call function attribute, ARC:
ARC Function Attributes
member fns, automatically inline:
Inline
memchr:
Other Builtins
memcmp:
Other Builtins
memcpy:
Other Builtins
memory references in constraints:
Simple Constraints
mempcpy:
Other Builtins
memset:
Other Builtins
MeP options:
MeP Options
Mercury:
G++ and GCC
message formatting:
Diagnostic Message Formatting Options
messages, warning:
Warning Options
messages, warning and error:
Warnings and Errors
MicroBlaze Options:
MicroBlaze Options
micromips function attribute:
MIPS Function Attributes
middle-operands, omitted:
Conditionals
MIPS options:
MIPS Options
mips16 function attribute, MIPS:
MIPS Function Attributes
misunderstandings in C++:
C++ Misunderstandings
mixed declarations and code:
Mixed Declarations
mixing assembly language and C:
Using Assembly Language with C
mktemp, and constant strings:
Incompatibilities
MMIX Options:
MMIX Options
MN10300 options:
MN10300 Options
mode type attribute:
Common Type Attributes
mode variable attribute:
Common Variable Attributes
model function attribute, M32R/D:
M32R/D Function Attributes
model variable attribute, IA-64:
IA-64 Variable Attributes
model-name variable attribute, M32R/D:
M32R/D Variable Attributes
modf:
Other Builtins
modff:
Other Builtins
modfl:
Other Builtins
modifiers in constraints:
Modifiers
Moxie Options:
Moxie Options
MSP430 Options:
MSP430 Options
ms_abi function attribute, x86:
x86 Function Attributes
ms_hook_prologue function attribute, x86:
x86 Function Attributes
ms_struct type attribute, PowerPC:
PowerPC Type Attributes
ms_struct type attribute, x86:
x86 Type Attributes
ms_struct variable attribute, PowerPC:
PowerPC Variable Attributes
ms_struct variable attribute, x86:
x86 Variable Attributes
multiple alternative constraints:
Multi-Alternative
multiprecision arithmetic:
Long Long
N
‘n’ in constraint:
Simple Constraints
naked function attribute, ARC:
ARC Function Attributes
naked function attribute, ARM:
ARM Function Attributes
naked function attribute, AVR:
AVR Function Attributes
naked function attribute, C-SKY:
C-SKY Function Attributes
naked function attribute, MCORE:
MCORE Function Attributes
naked function attribute, MSP430:
MSP430 Function Attributes
naked function attribute, NDS32:
NDS32 Function Attributes
naked function attribute, RISC-V:
RISC-V Function Attributes
naked function attribute, RL78:
RL78 Function Attributes
naked function attribute, RX:
RX Function Attributes
naked function attribute, x86:
x86 Function Attributes
Named Address Spaces:
Named Address Spaces
names used in assembler code:
Asm Labels
naming convention, implementation headers:
C++ Interface
NDS32 Options:
NDS32 Options
near function attribute, MeP:
MeP Function Attributes
near function attribute, MIPS:
MIPS Function Attributes
near type attribute, MeP:
MeP Type Attributes
near variable attribute, MeP:
MeP Variable Attributes
nearbyint:
Other Builtins
nearbyintf:
Other Builtins
nearbyintl:
Other Builtins
nested function attribute, NDS32:
NDS32 Function Attributes
nested functions:
Nested Functions
nested_ready function attribute, NDS32:
NDS32 Function Attributes
nesting function attribute, Blackfin:
Blackfin Function Attributes
newlines (escaped):
Escaped Newlines
nextafter:
Other Builtins
nextafterf:
Other Builtins
nextafterl:
Other Builtins
nexttoward:
Other Builtins
nexttowardf:
Other Builtins
nexttowardl:
Other Builtins
NFC:
Warning Options
NFKC:
Warning Options
Nios II options:
Nios II Options
nmi function attribute, NDS32:
NDS32 Function Attributes
NMI handler functions on the Blackfin processor:
Blackfin Function Attributes
nmi_handler function attribute, Blackfin:
Blackfin Function Attributes
nocf_check function attribute:
x86 Function Attributes
noclone function attribute:
Common Function Attributes
nocommon variable attribute:
Common Variable Attributes
nocompression function attribute, MIPS:
MIPS Function Attributes
noinit variable attribute:
Common Variable Attributes
noinit variable attribute, MSP430:
MSP430 Variable Attributes
noinline function attribute:
Common Function Attributes
noipa function attribute:
Common Function Attributes
nomicromips function attribute:
MIPS Function Attributes
nomips16 function attribute, MIPS:
MIPS Function Attributes
non-constant initializers:
Initializers
non-static inline function:
Inline
nonlocal gotos:
Nonlocal Gotos
nonnull function attribute:
Common Function Attributes
nonstring variable attribute:
Common Variable Attributes
noplt function attribute:
Common Function Attributes
noreturn function attribute:
Common Function Attributes
nosave_low_regs function attribute, SH:
SH Function Attributes
note GCC_COLORS capability:
Diagnostic Message Formatting Options
nothrow function attribute:
Common Function Attributes
notshared type attribute, ARM:
ARM Type Attributes
not_nested function attribute, NDS32:
NDS32 Function Attributes
no_caller_saved_registers function attribute, x86:
x86 Function Attributes
no_gccisr function attribute, AVR:
AVR Function Attributes
no_icf function attribute:
Common Function Attributes
no_instrument_function function attribute:
Common Function Attributes
no_profile_instrument_function function attribute:
Common Function Attributes
no_reorder function attribute:
Common Function Attributes
no_sanitize function attribute:
Common Function Attributes
no_sanitize_address function attribute:
Common Function Attributes
no_sanitize_thread function attribute:
Common Function Attributes
no_sanitize_undefined function attribute:
Common Function Attributes
no_split_stack function attribute:
Common Function Attributes
no_stack_limit function attribute:
Common Function Attributes
Nvidia PTX options:
Nvidia PTX Options
nvptx options:
Nvidia PTX Options
O
‘o’ in constraint:
Simple Constraints
OBJC_INCLUDE_PATH:
Environment Variables
Objective-C:
G++ and GCC
Objective-C:
Standards
Objective-C and Objective-C++ options, command-line:
Objective-C and Objective-C++ Dialect Options
Objective-C++:
G++ and GCC
Objective-C++:
Standards
offsettable address:
Simple Constraints
old-style function definitions:
Function Prototypes
omit-leaf-frame-pointer function attribute, AArch64:
AArch64 Function Attributes
omitted middle-operands:
Conditionals
open coding:
Inline
OpenACC accelerator programming:
C Dialect Options
OpenACC accelerator programming:
C Dialect Options
OpenMP parallel:
C Dialect Options
OpenMP SIMD:
C Dialect Options
OpenRISC Options:
OpenRISC Options
operand constraints, asm:
Constraints
optimize function attribute:
Common Function Attributes
optimize options:
Optimize Options
options to control diagnostics formatting:
Diagnostic Message Formatting Options
options to control warnings:
Warning Options
options, C++:
C++ Dialect Options
options, code generation:
Code Gen Options
options, debugging:
Debugging Options
options, dialect:
C Dialect Options
options, directory search:
Directory Options
options, GCC command:
Invoking GCC
options, grouping:
Invoking GCC
options, linking:
Link Options
options, Objective-C and Objective-C++:
Objective-C and Objective-C++ Dialect Options
options, optimization:
Optimize Options
options, order:
Invoking GCC
options, preprocessor:
Preprocessor Options
options, profiling:
Instrumentation Options
options, program instrumentation:
Instrumentation Options
options, run-time error checking:
Instrumentation Options
order of evaluation, side effects:
Non-bugs
order of options:
Invoking GCC
OS_main function attribute, AVR:
AVR Function Attributes
OS_task function attribute, AVR:
AVR Function Attributes
other register constraints:
Simple Constraints
outline-atomics function attribute, AArch64:
AArch64 Function Attributes
output file option:
Overall Options
overloaded virtual function, warning:
C++ Dialect Options
P
‘p’ in constraint:
Simple Constraints
packed type attribute:
Common Type Attributes
packed variable attribute:
Common Variable Attributes
parameter forward declaration:
Variable Length
partial_save function attribute, NDS32:
NDS32 Function Attributes
patchable_function_entry function attribute:
Common Function Attributes
path GCC_COLORS capability:
Diagnostic Message Formatting Options
pcs function attribute, ARM:
ARM Function Attributes
PDP-11 Options:
PDP-11 Options
persistent variable attribute, MSP430:
MSP430 Variable Attributes
PIC:
Code Gen Options
picoChip options:
picoChip Options
pmf:
Bound member functions
pointer arguments:
Common Function Attributes
pointer arguments in variadic functions:
Variadic Pointer Args
pointer to member function:
Bound member functions
pointers to arrays:
Pointers to Arrays
portions of temporary objects, pointers to:
Temporaries
pow:
Other Builtins
pow10:
Other Builtins
pow10f:
Other Builtins
pow10l:
Other Builtins
PowerPC options:
PowerPC Options
powf:
Other Builtins
powl:
Other Builtins
pragma GCC ivdep:
Loop-Specific Pragmas
pragma GCC optimize:
Function Specific Option Pragmas
pragma GCC pop_options:
Function Specific Option Pragmas
pragma GCC push_options:
Function Specific Option Pragmas
pragma GCC reset_options:
Function Specific Option Pragmas
pragma GCC target:
Function Specific Option Pragmas
pragma GCC unroll n:
Loop-Specific Pragmas
pragma, address:
M32C Pragmas
pragma, align:
Solaris Pragmas
pragma, call:
MeP Pragmas
pragma, coprocessor available:
MeP Pragmas
pragma, coprocessor call_saved:
MeP Pragmas
pragma, coprocessor subclass:
MeP Pragmas
pragma, ctable_entry:
PRU Pragmas
pragma, custom io_volatile:
MeP Pragmas
pragma, diagnostic:
Diagnostic Pragmas
pragma, diagnostic:
Diagnostic Pragmas
pragma, diagnostic:
Diagnostic Pragmas
pragma, diagnostic:
Diagnostic Pragmas
pragma, disinterrupt:
MeP Pragmas
pragma, fini:
Solaris Pragmas
pragma, init:
Solaris Pragmas
pragma, longcall:
RS/6000 and PowerPC Pragmas
pragma, long_calls:
ARM Pragmas
pragma, long_calls_off:
ARM Pragmas
pragma, mark:
Darwin Pragmas
pragma, memregs:
M32C Pragmas
pragma, no_long_calls:
ARM Pragmas
pragma, options align:
Darwin Pragmas
pragma, pop_macro:
Push/Pop Macro Pragmas
pragma, push_macro:
Push/Pop Macro Pragmas
pragma, redefine_extname:
Symbol-Renaming Pragmas
pragma, segment:
Darwin Pragmas
pragma, unused:
Darwin Pragmas
pragma, visibility:
Visibility Pragmas
pragma, weak:
Weak Pragmas
pragmas:
Pragmas
pragmas in C++, effect on inlining:
C++ Interface
pragmas, interface and implementation:
C++ Interface
pragmas, warning of unknown:
Warning Options
precompiled headers:
Precompiled Headers
preprocessing numbers:
Incompatibilities
preprocessing tokens:
Incompatibilities
preprocessor options:
Preprocessor Options
printf:
Other Builtins
printf_unlocked:
Other Builtins
prof:
Instrumentation Options
profiling options:
Instrumentation Options
progmem variable attribute, AVR:
AVR Variable Attributes
program instrumentation options:
Instrumentation Options
promotion of formal parameters:
Function Prototypes
PRU Options:
PRU Options
pure function attribute:
Common Function Attributes
push address instruction:
Simple Constraints
putchar:
Other Builtins
puts:
Other Builtins
Q
q floating point suffix:
Floating Types
Q floating point suffix:
Floating Types
qsort, and global register variables:
Global Register Variables
quote GCC_COLORS capability:
Diagnostic Message Formatting Options
R
r fixed-suffix:
Fixed-Point
R fixed-suffix:
Fixed-Point
‘r’ in constraint:
Simple Constraints
RAMPD:
AVR Options
RAMPX:
AVR Options
RAMPY:
AVR Options
RAMPZ:
AVR Options
range1 GCC_COLORS capability:
Diagnostic Message Formatting Options
range2 GCC_COLORS capability:
Diagnostic Message Formatting Options
ranges in case statements:
Case Ranges
read-only strings:
Incompatibilities
realloc:
Other Builtins
reentrant function attribute, MSP430:
MSP430 Function Attributes
register variable after longjmp:
Global Register Variables
registers for local variables:
Local Register Variables
registers in constraints:
Simple Constraints
registers, global allocation:
Global Register Variables
registers, global variables in:
Global Register Variables
regparm function attribute, x86:
x86 Function Attributes
relocation truncated to fit (ColdFire):
M680x0 Options
relocation truncated to fit (MIPS):
MIPS Options
remainder:
Other Builtins
remainderf:
Other Builtins
remainderl:
Other Builtins
remquo:
Other Builtins
remquof:
Other Builtins
remquol:
Other Builtins
renesas function attribute, SH:
SH Function Attributes
reordering, warning:
C++ Dialect Options
reporting bugs:
Bugs
resbank function attribute, SH:
SH Function Attributes
reset function attribute, NDS32:
NDS32 Function Attributes
reset handler functions:
NDS32 Function Attributes
rest argument (in macro):
Variadic Macros
restricted pointers:
Restricted Pointers
restricted references:
Restricted Pointers
restricted this pointer:
Restricted Pointers
returns_nonnull function attribute:
Common Function Attributes
returns_twice function attribute:
Common Function Attributes
rindex:
Other Builtins
rint:
Other Builtins
rintf:
Other Builtins
rintl:
Other Builtins
RISC-V Options:
RISC-V Options
RL78 Options:
RL78 Options
round:
Other Builtins
roundf:
Other Builtins
roundl:
Other Builtins
RS/6000 and PowerPC Options:
RS/6000 and PowerPC Options
RTTI:
Vague Linkage
run-time error checking options:
Instrumentation Options
run-time options:
Code Gen Options
RX Options:
RX Options
S
‘s’ in constraint:
Simple Constraints
S/390 and zSeries Options:
S/390 and zSeries Options
saddr variable attribute, RL78:
RL78 Variable Attributes
save all registers on the Blackfin:
Blackfin Function Attributes
save all registers on the H8/300, H8/300H, and H8S:
H8/300 Function Attributes
saveall function attribute, Blackfin:
Blackfin Function Attributes
saveall function attribute, H8/300:
H8/300 Function Attributes
save_all function attribute, NDS32:
NDS32 Function Attributes
save_volatiles function attribute, MicroBlaze:
MicroBlaze Function Attributes
scalar_storage_order type attribute:
Common Type Attributes
scalb:
Other Builtins
scalbf:
Other Builtins
scalbl:
Other Builtins
scalbln:
Other Builtins
scalblnf:
Other Builtins
scalblnf:
Other Builtins
scalbn:
Other Builtins
scalbnf:
Other Builtins
scanf, and constant strings:
Incompatibilities
scanfnl:
Other Builtins
scope of a variable length array:
Variable Length
scope of declaration:
Disappointments
scope of external declarations:
Incompatibilities
Score Options:
Score Options
sda variable attribute, V850:
V850 Variable Attributes
search path:
Directory Options
section function attribute:
Common Function Attributes
section variable attribute:
Common Variable Attributes
secure_call function attribute, ARC:
ARC Function Attributes
selectany variable attribute:
Microsoft Windows Variable Attributes
sentinel function attribute:
Common Function Attributes
setjmp:
Global Register Variables
setjmp incompatibilities:
Incompatibilities
shared attribute, Nvidia PTX:
Nvidia PTX Variable Attributes
shared strings:
Incompatibilities
shared variable attribute:
Microsoft Windows Variable Attributes
shortcall function attribute, Blackfin:
Blackfin Function Attributes
shortcall function attribute, PowerPC:
PowerPC Function Attributes
short_call function attribute, ARC:
ARC Function Attributes
short_call function attribute, ARM:
ARM Function Attributes
short_call function attribute, Epiphany:
Epiphany Function Attributes
short_call function attribute, MIPS:
MIPS Function Attributes
side effect in ?::
Conditionals
side effects, macro argument:
Statement Exprs
side effects, order of evaluation:
Non-bugs
sign-return-address function attribute, AArch64:
AArch64 Function Attributes
signal function attribute, AVR:
AVR Function Attributes
signbit:
Other Builtins
signbitd128:
Other Builtins
signbitd32:
Other Builtins
signbitd64:
Other Builtins
signbitf:
Other Builtins
signbitl:
Other Builtins
signed and unsigned values, comparison warning:
Warning Options
significand:
Other Builtins
significandf:
Other Builtins
significandl:
Other Builtins
SIMD:
C Dialect Options
simd function attribute:
Common Function Attributes
simple constraints:
Simple Constraints
sin:
Other Builtins
sincos:
Other Builtins
sincosf:
Other Builtins
sincosl:
Other Builtins
sinf:
Other Builtins
sinh:
Other Builtins
sinhf:
Other Builtins
sinhl:
Other Builtins
sinl:
Other Builtins
sizeof:
Typeof
smaller data references:
M32R/D Options
smaller data references:
Nios II Options
smaller data references (PowerPC):
RS/6000 and PowerPC Options
snprintf:
Other Builtins
Solaris 2 options:
Solaris 2 Options
SOURCE_DATE_EPOCH:
Environment Variables
SPARC options:
SPARC Options
Spec Files:
Spec Files
specified registers:
Explicit Register Variables
specifying compiler version and target machine:
Invoking GCC
specifying hardware config:
Submodel Options
specifying machine version:
Invoking GCC
specifying registers for local variables:
Local Register Variables
speed of compilation:
Precompiled Headers
sprintf:
Other Builtins
sp_switch function attribute, SH:
SH Function Attributes
sqrt:
Other Builtins
sqrtf:
Other Builtins
sqrtl:
Other Builtins
sscanf:
Other Builtins
sscanf, and constant strings:
Incompatibilities
sseregparm function attribute, x86:
x86 Function Attributes
stack_protect function attribute:
Common Function Attributes
Statement Attributes:
Statement Attributes
statements inside expressions:
Statement Exprs
static data in C++, declaring and defining:
Static Definitions
stdcall function attribute, x86-32:
x86 Function Attributes
stpcpy:
Other Builtins
stpncpy:
Other Builtins
strcasecmp:
Other Builtins
strcat:
Other Builtins
strchr:
Other Builtins
strcmp:
Other Builtins
strcpy:
Other Builtins
strcspn:
Other Builtins
strdup:
Other Builtins
strfmon:
Other Builtins
strftime:
Other Builtins
strict-align function attribute, AArch64:
AArch64 Function Attributes
string constants:
Incompatibilities
strlen:
Other Builtins
strncasecmp:
Other Builtins
strncat:
Other Builtins
strncmp:
Other Builtins
strncpy:
Other Builtins
strndup:
Other Builtins
strnlen:
Other Builtins
strpbrk:
Other Builtins
strrchr:
Other Builtins
strspn:
Other Builtins
strstr:
Other Builtins
struct:
Unnamed Fields
struct __htm_tdb:
S/390 System z Built-in Functions
structures:
Incompatibilities
structures, constructor expression:
Compound Literals
submodel options:
Submodel Options
subscripting:
Subscripting
subscripting and function values:
Subscripting
suffixes for C++ source:
Invoking G++
SUNPRO_DEPENDENCIES:
Environment Variables
suppressing warnings:
Warning Options
surprises in C++:
C++ Misunderstandings
syntax checking:
Warning Options
syscall_linkage function attribute, IA-64:
IA-64 Function Attributes
system headers, warnings from:
Warning Options
sysv_abi function attribute, x86:
x86 Function Attributes
T
tan:
Other Builtins
tanf:
Other Builtins
tanh:
Other Builtins
tanhf:
Other Builtins
tanhl:
Other Builtins
tanl:
Other Builtins
target function attribute:
Common Function Attributes
target function attribute:
ARM Function Attributes
target function attribute:
Nios II Function Attributes
target function attribute:
PowerPC Function Attributes
target function attribute:
S/390 Function Attributes
target function attribute:
x86 Function Attributes
target machine, specifying:
Invoking GCC
target("3dnow") function attribute, x86:
x86 Function Attributes
target("3dnowa") function attribute, x86:
x86 Function Attributes
target("abm") function attribute, x86:
x86 Function Attributes
target("adx") function attribute, x86:
x86 Function Attributes
target("aes") function attribute, x86:
x86 Function Attributes
target("align-stringops") function attribute, x86:
x86 Function Attributes
target("altivec") function attribute, PowerPC:
PowerPC Function Attributes
target("arch=ARCH") function attribute, x86:
x86 Function Attributes
target("arm") function attribute, ARM:
ARM Function Attributes
target("avoid-indexed-addresses") function attribute, PowerPC:
PowerPC Function Attributes
target("avx") function attribute, x86:
x86 Function Attributes
target("avx2") function attribute, x86:
x86 Function Attributes
target("avx5124fmaps") function attribute, x86:
x86 Function Attributes
target("avx5124vnniw") function attribute, x86:
x86 Function Attributes
target("avx512bitalg") function attribute, x86:
x86 Function Attributes
target("avx512bw") function attribute, x86:
x86 Function Attributes
target("avx512cd") function attribute, x86:
x86 Function Attributes
target("avx512dq") function attribute, x86:
x86 Function Attributes
target("avx512er") function attribute, x86:
x86 Function Attributes
target("avx512f") function attribute, x86:
x86 Function Attributes
target("avx512ifma") function attribute, x86:
x86 Function Attributes
target("avx512pf") function attribute, x86:
x86 Function Attributes
target("avx512vbmi") function attribute, x86:
x86 Function Attributes
target("avx512vbmi2") function attribute, x86:
x86 Function Attributes
target("avx512vl") function attribute, x86:
x86 Function Attributes
target("avx512vnni") function attribute, x86:
x86 Function Attributes
target("avx512vpopcntdq") function attribute, x86:
x86 Function Attributes
target("bmi") function attribute, x86:
x86 Function Attributes
target("bmi2") function attribute, x86:
x86 Function Attributes
target("cld") function attribute, x86:
x86 Function Attributes
target("cldemote") function attribute, x86:
x86 Function Attributes
target("clflushopt") function attribute, x86:
x86 Function Attributes
target("clwb") function attribute, x86:
x86 Function Attributes
target("clzero") function attribute, x86:
x86 Function Attributes
target("cmpb") function attribute, PowerPC:
PowerPC Function Attributes
target("cpu=CPU") function attribute, PowerPC:
PowerPC Function Attributes
target("crc32") function attribute, x86:
x86 Function Attributes
target("custom-fpu-cfg=name") function attribute, Nios II:
Nios II Function Attributes
target("custom-insn=N") function attribute, Nios II:
Nios II Function Attributes
target("cx16") function attribute, x86:
x86 Function Attributes
target("default") function attribute, x86:
x86 Function Attributes
target("dlmzb") function attribute, PowerPC:
PowerPC Function Attributes
target("f16c") function attribute, x86:
x86 Function Attributes
target("fancy-math-387") function attribute, x86:
x86 Function Attributes
target("fma") function attribute, x86:
x86 Function Attributes
target("fma4") function attribute, x86:
x86 Function Attributes
target("fpmath=FPMATH") function attribute, x86:
x86 Function Attributes
target("fprnd") function attribute, PowerPC:
PowerPC Function Attributes
target("fpu=") function attribute, ARM:
ARM Function Attributes
target("friz") function attribute, PowerPC:
PowerPC Function Attributes
target("fsgsbase") function attribute, x86:
x86 Function Attributes
target("fxsr") function attribute, x86:
x86 Function Attributes
target("gfni") function attribute, x86:
x86 Function Attributes
target("hard-dfp") function attribute, PowerPC:
PowerPC Function Attributes
target("hle") function attribute, x86:
x86 Function Attributes
target("ieee-fp") function attribute, x86:
x86 Function Attributes
target("inline-all-stringops") function attribute, x86:
x86 Function Attributes
target("inline-stringops-dynamically") function attribute, x86:
x86 Function Attributes
target("isel") function attribute, PowerPC:
PowerPC Function Attributes
target("longcall") function attribute, PowerPC:
PowerPC Function Attributes
target("lwp") function attribute, x86:
x86 Function Attributes
target("lzcnt") function attribute, x86:
x86 Function Attributes
target("mfcrf") function attribute, PowerPC:
PowerPC Function Attributes
target("mmx") function attribute, x86:
x86 Function Attributes
target("movbe") function attribute, x86:
x86 Function Attributes
target("movdir64b") function attribute, x86:
x86 Function Attributes
target("movdiri") function attribute, x86:
x86 Function Attributes
target("mulhw") function attribute, PowerPC:
PowerPC Function Attributes
target("multiple") function attribute, PowerPC:
PowerPC Function Attributes
target("mwaitx") function attribute, x86:
x86 Function Attributes
target("no-custom-insn") function attribute, Nios II:
Nios II Function Attributes
target("paired") function attribute, PowerPC:
PowerPC Function Attributes
target("pclmul") function attribute, x86:
x86 Function Attributes
target("pconfig") function attribute, x86:
x86 Function Attributes
target("pku") function attribute, x86:
x86 Function Attributes
target("popcnt") function attribute, x86:
x86 Function Attributes
target("popcntb") function attribute, PowerPC:
PowerPC Function Attributes
target("popcntd") function attribute, PowerPC:
PowerPC Function Attributes
target("powerpc-gfxopt") function attribute, PowerPC:
PowerPC Function Attributes
target("powerpc-gpopt") function attribute, PowerPC:
PowerPC Function Attributes
target("prefetchwt1") function attribute, x86:
x86 Function Attributes
target("prfchw") function attribute, x86:
x86 Function Attributes
target("ptwrite") function attribute, x86:
x86 Function Attributes
target("rdpid") function attribute, x86:
x86 Function Attributes
target("rdrnd") function attribute, x86:
x86 Function Attributes
target("rdseed") function attribute, x86:
x86 Function Attributes
target("recip") function attribute, x86:
x86 Function Attributes
target("recip-precision") function attribute, PowerPC:
PowerPC Function Attributes
target("rtm") function attribute, x86:
x86 Function Attributes
target("sahf") function attribute, x86:
x86 Function Attributes
target("sgx") function attribute, x86:
x86 Function Attributes
target("sha") function attribute, x86:
x86 Function Attributes
target("shstk") function attribute, x86:
x86 Function Attributes
target("sse") function attribute, x86:
x86 Function Attributes
target("sse2") function attribute, x86:
x86 Function Attributes
target("sse3") function attribute, x86:
x86 Function Attributes
target("sse4") function attribute, x86:
x86 Function Attributes
target("sse4.1") function attribute, x86:
x86 Function Attributes
target("sse4.2") function attribute, x86:
x86 Function Attributes
target("sse4a") function attribute, x86:
x86 Function Attributes
target("ssse3") function attribute, x86:
x86 Function Attributes
target("string") function attribute, PowerPC:
PowerPC Function Attributes
target("tbm") function attribute, x86:
x86 Function Attributes
target("thumb") function attribute, ARM:
ARM Function Attributes
target("tune=TUNE") function attribute, PowerPC:
PowerPC Function Attributes
target("tune=TUNE") function attribute, x86:
x86 Function Attributes
target("update") function attribute, PowerPC:
PowerPC Function Attributes
target("vaes") function attribute, x86:
x86 Function Attributes
target("vpclmulqdq") function attribute, x86:
x86 Function Attributes
target("vsx") function attribute, PowerPC:
PowerPC Function Attributes
target("waitpkg") function attribute, x86:
x86 Function Attributes
target("wbnoinvd") function attribute, x86:
x86 Function Attributes
target("xop") function attribute, x86:
x86 Function Attributes
target("xsave") function attribute, x86:
x86 Function Attributes
target("xsavec") function attribute, x86:
x86 Function Attributes
target("xsaveopt") function attribute, x86:
x86 Function Attributes
target("xsaves") function attribute, x86:
x86 Function Attributes
target-dependent options:
Submodel Options
target_clones function attribute:
Common Function Attributes
TC1:
Standards
TC2:
Standards
TC3:
Standards
tda variable attribute, V850:
V850 Variable Attributes
Technical Corrigenda:
Standards
Technical Corrigendum 1:
Standards
Technical Corrigendum 2:
Standards
Technical Corrigendum 3:
Standards
template instantiation:
Template Instantiation
temporaries, lifetime of:
Temporaries
tentative definitions:
Code Gen Options
TERM_URLS environment variable:
Diagnostic Message Formatting Options
tgamma:
Other Builtins
tgammaf:
Other Builtins
tgammal:
Other Builtins
thiscall function attribute, x86-32:
x86 Function Attributes
Thread-Local Storage:
Thread-Local
thunks:
Nested Functions
TILE-Gx options:
TILE-Gx Options
TILEPro options:
TILEPro Options
tiny data section on the H8/300H and H8S:
H8/300 Variable Attributes
tiny type attribute, MeP:
MeP Type Attributes
tiny variable attribute, MeP:
MeP Variable Attributes
tiny_data variable attribute, H8/300:
H8/300 Variable Attributes
TLS:
Thread-Local
tls-dialect= function attribute, AArch64:
AArch64 Function Attributes
tls_model variable attribute:
Common Variable Attributes
TMPDIR:
Environment Variables
toascii:
Other Builtins
tolower:
Other Builtins
toupper:
Other Builtins
towlower:
Other Builtins
towupper:
Other Builtins
traditional C language:
Preprocessor Options
transparent_union type attribute:
Common Type Attributes
trapa_handler function attribute, SH:
SH Function Attributes
trap_exit function attribute, SH:
SH Function Attributes
trunc:
Other Builtins
truncf:
Other Builtins
truncl:
Other Builtins
tune= function attribute, AArch64:
AArch64 Function Attributes
two-stage name lookup:
Name lookup
type alignment:
Alignment
type attributes:
Type Attributes
type-diff GCC_COLORS capability:
Diagnostic Message Formatting Options
typedef names as function parameters:
Incompatibilities
typeof:
Typeof
type_info:
Vague Linkage
U
uhk fixed-suffix:
Fixed-Point
UHK fixed-suffix:
Fixed-Point
uhr fixed-suffix:
Fixed-Point
UHR fixed-suffix:
Fixed-Point
uk fixed-suffix:
Fixed-Point
UK fixed-suffix:
Fixed-Point
ulk fixed-suffix:
Fixed-Point
ULK fixed-suffix:
Fixed-Point
ULL integer suffix:
Long Long
ullk fixed-suffix:
Fixed-Point
ULLK fixed-suffix:
Fixed-Point
ullr fixed-suffix:
Fixed-Point
ULLR fixed-suffix:
Fixed-Point
ulr fixed-suffix:
Fixed-Point
ULR fixed-suffix:
Fixed-Point
uncached type attribute, ARC:
ARC Type Attributes
undefined behavior:
Bug Criteria
undefined function value:
Bug Criteria
underscores in variables in macros:
Typeof
union:
Unnamed Fields
union, casting to a:
Cast to Union
unions:
Incompatibilities
unknown pragmas, warning:
Warning Options
unresolved references and -nodefaultlibs:
Link Options
unresolved references and -nostdlib:
Link Options
unused function attribute:
Common Function Attributes
unused label attribute:
Label Attributes
unused type attribute:
Common Type Attributes
unused variable attribute:
Common Variable Attributes
upper function attribute, MSP430:
MSP430 Function Attributes
upper variable attribute, MSP430:
MSP430 Variable Attributes
ur fixed-suffix:
Fixed-Point
UR fixed-suffix:
Fixed-Point
urls:
Diagnostic Message Formatting Options
used function attribute:
Common Function Attributes
used variable attribute:
Common Variable Attributes
User stack pointer in interrupts on the Blackfin:
Blackfin Function Attributes
use_debug_exception_return function attribute, MIPS:
MIPS Function Attributes
use_shadow_register_set function attribute, MIPS:
MIPS Function Attributes
V
‘V’ in constraint:
Simple Constraints
V850 Options:
V850 Options
vague linkage:
Vague Linkage
value after longjmp:
Global Register Variables
variable addressability on the M32R/D:
M32R/D Variable Attributes
variable alignment:
Alignment
variable attributes:
Variable Attributes
variable number of arguments:
Variadic Macros
variable-length array in a structure:
Variable Length
variable-length array scope:
Variable Length
variable-length arrays:
Variable Length
variables in specified registers:
Explicit Register Variables
variables, local, in macros:
Typeof
variadic functions, pointer arguments:
Variadic Pointer Args
variadic macros:
Variadic Macros
VAX options:
VAX Options
vector function attribute, RX:
RX Function Attributes
vector types, using with x86 intrinsics:
Vector Extensions
vector_size type attribute:
Common Type Attributes
vector_size variable attribute:
Common Variable Attributes
version_id function attribute, IA-64:
IA-64 Function Attributes
vfprintf:
Other Builtins
vfscanf:
Other Builtins
visibility function attribute:
Common Function Attributes
visibility type attribute:
Common Type Attributes
visibility variable attribute:
Common Variable Attributes
Visium options:
Visium Options
VLAs:
Variable Length
vliw function attribute, MeP:
MeP Function Attributes
void pointers, arithmetic:
Pointer Arith
void, size of pointer to:
Pointer Arith
volatile access:
Volatiles
volatile access:
C++ Volatiles
volatile applied to function:
Function Attributes
volatile asm:
Extended Asm
volatile read:
Volatiles
volatile read:
C++ Volatiles
volatile write:
Volatiles
volatile write:
C++ Volatiles
vprintf:
Other Builtins
vscanf:
Other Builtins
vsnprintf:
Other Builtins
vsprintf:
Other Builtins
vsscanf:
Other Builtins
vtable:
Vague Linkage
VxWorks Options:
VxWorks Options
W
w floating point suffix:
Floating Types
W floating point suffix:
Floating Types
wakeup function attribute, MSP430:
MSP430 Function Attributes
warm function attribute, NDS32:
NDS32 Function Attributes
warning for comparison of signed and unsigned values:
Warning Options
warning for overloaded virtual function:
C++ Dialect Options
warning for reordering of member initializers:
C++ Dialect Options
warning for unknown pragmas:
Warning Options
warning function attribute:
Common Function Attributes
warning GCC_COLORS capability:
Diagnostic Message Formatting Options
warning messages:
Warning Options
warnings from system headers:
Warning Options
warnings vs errors:
Warnings and Errors
warn_if_not_aligned type attribute:
Common Type Attributes
warn_if_not_aligned variable attribute:
Common Variable Attributes
warn_unused type attribute:
C++ Attributes
warn_unused_result function attribute:
Common Function Attributes
weak function attribute:
Common Function Attributes
weak variable attribute:
Common Variable Attributes
weakref function attribute:
Common Function Attributes
whitespace:
Incompatibilities
Windows Options for x86:
x86 Windows Options
X
‘X’ in constraint:
Simple Constraints
X3.159-1989:
Standards
x86 named address spaces:
Named Address Spaces
x86 Options:
x86 Options
x86 Windows Options:
x86 Windows Options
Xstormy16 Options:
Xstormy16 Options
Xtensa Options:
Xtensa Options
Y
y0:
Other Builtins
y0f:
Other Builtins
y0l:
Other Builtins
y1:
Other Builtins
y1f:
Other Builtins
y1l:
Other Builtins
yn:
Other Builtins
ynf:
Other Builtins
ynl:
Other Builtins
Z
zda variable attribute, V850:
V850 Variable Attributes
zero-length arrays:
Zero Length
zero-size structures:
Empty Structures
zSeries options:
zSeries Options
