# strstr function

strstr will find a sub-string within a string. See also strchr which will look for a character in a string.

    Library:   string.h

    Prototype: char * strstr(const char *s1, const char *s2);

    Syntax:	   char string1[]="red dwarf";
    	   char string2[]="dwarf";
    	   void *pointer;
               pointer = strstr(string1, string2);

strstr returns a pointer to the beginning of the sub-string or NULL if not found.

## Example:

example program.

## See Also:

strstr man page.

strchr Find a character in a string.

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