MEMCHR(3)              FreeBSD Library Functions Manual              MEMCHR(3)

NAME
     memchr - locate byte in byte string

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <string.h>

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

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

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

     The memrchr() function behaves like memchr(), except that it locates the
     last occurrence of c in string b.

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

SEE ALSO
     memmem(3), 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").

     The memrchr() function is a GNU extension and conforms to no standard.

HISTORY
     The memrchr() function first appeared in GNU libc 2.1.91, this
     implementation first appeared in FreeBSD 6.4, coming from OpenBSD 4.3.

FreeBSD 13.1-RELEASE-p6          April 9, 2008         FreeBSD 13.1-RELEASE-p6