Gdb/C-Defaults
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15.4.1.4 C and C++
Defaults
If you allow GDB to set range checking automatically, it
defaults to off
whenever the working language changes to
C or C++
. This happens regardless of whether you or GDB
selects the working language.
If you allow GDB to set the language automatically, it
recognizes source files whose names end with .c
, .C
, or
.cc
, etc, and when GDB enters code compiled from one of
these files, it sets the working language to C or C++
.
See Having GDB Infer the Source Language,
for further details.