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strchr(3) [freebsd man page]

STRCHR(3)						   BSD Library Functions Manual 						 STRCHR(3)

NAME
strchr, strrchr, strchrnul -- locate character in string LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <string.h> char * strchr(const char *s, int c); char * strrchr(const char *s, int c); char * strchrnul(const char *s, int c); DESCRIPTION
The strchr() function locates the first occurrence of c (converted to a char) in the string pointed to by s. The terminating null character is considered part of the string; therefore if c is '', the functions locate the terminating ''. The strrchr() function is identical to strchr() except it locates the last occurrence of c. The strchrnul() function is identical to strchr() except that if c is not found in s a pointer to the terminating '' is returned. RETURN VALUES
The functions strchr() and strrchr() return a pointer to the located character, or NULL if the character does not appear in the string. strchrnul() returns a pointer to the terminating '' if the character does not appear in the string. SEE ALSO
memchr(3), memmem(3), strcspn(3), strpbrk(3), strsep(3), strspn(3), strstr(3), strtok(3), wcschr(3) STANDARDS
The functions strchr() and strrchr() conform to ISO/IEC 9899:1990 (``ISO C90''). The strchrnul() is a GNU extension . History The strchrnul() function first appeared in glibc 2.1.1 and was added in FreeBSD 10.0. BSD
February 13, 2013 BSD

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STRCHR(3)						     Linux Programmer's Manual							 STRCHR(3)

NAME
strchr, strrchr, strchrnul - locate character in string SYNOPSIS
#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), string(3), strlen(3), strpbrk(3), strsep(3), strspn(3), strstr(3), strtok(3), wcschr(3), wcsrchr(3), fea- ture_test_macros(7) COLOPHON
This page is part of release 3.27 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/. GNU
2010-09-20 STRCHR(3)

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