Copyright (c) 1990 The Regents of the University of California.
All rights reserved.

This code is derived from software contributed to Berkeley by
Chris Torek.

%sccs.include.redist.man%

@(#)strstr.3 5.1 (Berkeley) 05/15/90

C 7 strstr - locate a substring in a string

#include <string.h>

char *
strstr(const char *big, const char *little);

Strstr locates the first occurrence of the null-terminated string little in the null-terminated string big . If little is the empty string, strstr returns big ; if little occurs nowhere in big , strstr returns NULL; otherwise strstr returns a pointer to the first character of the first occurrence of little . index(3), memchr(3), rindex(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strtok(3) Strstr conforms to ANSI X3.159-1989 (``ANSI C'').