@node memchr, memory
@findex memchr
@subheading Syntax

@example
#include <string.h>

void *memchr(const void *string, int ch, size_t num);
@end example

@subheading Description

This function searches @var{num} bytes starting at @var{string}, looking
for the first occurrence of @var{ch}. 

@subheading Return Value

A pointer to the first match, or @code{NULL} if it wasn't found.

@subheading Portability

@portability ansi, posix

@subheading Example

@example
if (memchr(path, '/', strlen(path))
  do_slash();
@end example