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strchrnul
Langue: en
Version: 2008-08-11 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
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 #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 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.
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), strlen(3), strpbrk(3), strsep(3), strspn(3), strstr(3), strtok(3), wcschr(3), wcsrchr(3), feature_test_macros(7)COLOPHON
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