strpbrk
Defined in header <string.h>
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Scans the null-terminated byte string pointed to by dest
for any character from the null-terminated byte string pointed to by breakset
, and returns a pointer to that character.
The behavior is undefined if either dest
or breakset
is not a pointer to a null-terminated byte string.
Parameters
dest | - | pointer to the null-terminated byte string to be analyzed |
breakset | - | pointer to the null-terminated byte string that contains the characters to search for |
Return value
Pointer to the first character in dest
, that is also in breakset
, or null pointer if no such character exists.
Notes
The name stands for "string pointer break", because it returns a pointer to the first of the separator ("break") characters.
Example
#include <stdio.h>
#include <string.h>
int main(void)
{
const char* str = "hello world, friend of mine!";
const char* sep = " ,!";
unsigned int cnt = 0;
do {
str = strpbrk(str, sep); // find separator
if(str) str += strspn(str, sep); // skip separator
++cnt; // increment word count
} while(str && *str);
printf("There are %u words\n", cnt);
}
Output:
There are 5 words
References
C11 standard (ISO/IEC 9899:2011):
- 7.24.5.4 The strpbrk function (p: 368)
C99 standard (ISO/IEC 9899:1999):
- 7.21.5.4 The strpbrk function (p: 331)
C89/C90 standard (ISO/IEC 9899:1990):
- 4.11.5.4 The strpbrk function
See also
returns the length of the maximum initial segment that consists of only the characters not found in another byte string | |
finds the first occurrence of a character (function) | |
(C11) |
finds the next token in a byte string (function) |
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