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memchr(3) [osx man page]

MEMCHR(3)						   BSD Library Functions Manual 						 MEMCHR(3)

memchr -- locate byte in byte string LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <string.h> void * memchr(const void *s, int c, size_t n); DESCRIPTION
The memchr() function locates the first occurrence of c (converted to an unsigned char) in string s. RETURN VALUES
The memchr() function returns a pointer to the byte located, or NULL if no such byte exists within n bytes. SEE ALSO
strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3), wmemchr(3) STANDARDS
The memchr() function conforms to ISO/IEC 9899:1990 (``ISO C90''). BSD
April 9, 2008 BSD

Check Out this Related Man Page

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

memchr, memrchr - scan memory for a character SYNOPSIS
#include <string.h> void *memchr(const void *s, int c, size_t n); void *memrchr(const void *s, int c, size_t n); DESCRIPTION
The memchr() function scans the first n bytes of the memory area pointed to by s for the character c. The first byte to match c (inter- preted as an unsigned character) stops the operation. The memrchr() function is like the memchr() function, except that it searches backwards from the end of the n bytes pointed to by s instead of forwards from the front. RETURN VALUE
The memchr() and memrchr() functions return a pointer to the matching byte or NULL if the character does not occur in the given memory area. CONFORMING TO
The memchr() function conforms to SVID 3, BSD 4.3, ISO 9899, POSIX. The memrchr() function is a GNU extension, available since glibc 2.1.91. SEE ALSO
index(3), rindex(3), strchr(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3) GNU
2002-02-20 MEMCHR(3)
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