MEMCHR(3) Library Functions Manual MEMCHR(3)

memchr, memrchr
locate byte in byte string

Standard C Library (libc, -lc)

#include <string.h>

void *
memchr(const void *b, int c, size_t len);

void *
memrchr(const void *b, int c, size_t len);

The memchr() function locates the first occurrence of c (converted to an unsigned char) in string b. The memrchr() function locates the last occurrence of c (converted to an unsigned char) in string b.

The memchr() and memrchr() functions return a pointer to the byte located, or NULL if no such byte exists within len bytes.

index(3), rindex(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3)

The memchr() function conforms to ANSI X3.159-1989 (“ANSI C89”).
April 10, 2009 NetBSD 9.2