strchr, strrchr, strchrnul — locate character in string
#include <string.h>
char
*strchr( |
const char * | s, |
| int | c); |
char
*strrchr( |
const char * | s, |
| int | c); |
#define _GNU_SOURCE #include <string.h>
char
*strchrnul( |
const char * | s, |
| int | c); |
The strchr() function
returns a pointer to the first occurrence of the character
c in the string
s.
The strrchr() function
returns a pointer to the last occurrence of the character
c in the string
s.
The strchrnul() function is
like strchr() except that if
c is not found in
s, then it returns a
pointer to the null byte at the end of s, rather than NULL.
Here "character" means "byte"; these functions do not work with wide or multi-byte characters.
The strchr() and
strrchr() functions return a
pointer to the matched character or NULL if the character is
not found.
The strchrnul() function
returns a pointer to the matched character, or a pointer to
the null byte at the end of s (i.e., s+strlen(s)) if the character
is not found.
index(3), memchr(3), rindex(3), strlen(3), strpbrk(3), strsep(3), strspn(3), strstr(3), strtok(3), wcschr(3), wcsrchr(3), feature_test_macros(7)
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