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RedHat 9 (Linux i386) - man page for strstr (redhat section 3)

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

NAME
       strstr - locate a substring

SYNOPSIS
       #include <string.h>

       char *strstr(const char *haystack, const char *needle);

DESCRIPTION
       The  strstr()  function	finds  the first occurrence of the substring needle in the string
       haystack.  The terminating `\0' characters are not compared.

RETURN VALUE
       The strstr() function returns a pointer to the beginning of the substring, or NULL if  the
       substring is not found.

BUGS
       Early  versions	of Linux libc (like 4.5.26) would not allow an empty argument. Later ver-
       sions (like 4.6.27) work correctly, and return haystack when needle is empty.

CONFORMING TO
       ISO 9899

SEE ALSO
       index(3), memchr(3), rindex(3), strchr(3), strpbrk(3), strsep(3), strspn(3), strtok(3)

GNU					    1993-04-12					STRSTR(3)


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