STRCHR(3) | Linux Programmer's Manual | STRCHR(3) |
NAME
strchr, strrchr, strchrnul - locate character in stringSYNOPSIS
#include<string.h>
char *strchr(const char * s , int c );
char *strrchr(const char * s , int c );
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include
<string.h>
char *strchrnul(const char * s , int c );
DESCRIPTION
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 multibyte characters.
RETURN VALUE
The strchr() and strrchr() functions return a pointer to the matched character or NULL if the character is not found. The terminating null byte is considered part of the string, so that if c is specified as '\0', these functions return a pointer to the terminator.VERSIONS
strchrnul() first appeared in glibc in version 2.1.1.CONFORMING TO
strchr() and strrchr() are in SVr4, 4.3BSD, C89, C99. strchrnul() is a GNU extension.SEE ALSO
index(3), memchr(3), rindex(3), string(3), strlen(3), strpbrk(3), strsep(3), strspn(3), strstr(3), strtok(3), wcschr(3), wcsrchr(3)COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.2012-04-24 | GNU |