Click above to get retro games delivered to your door ever month!

strspn
======

Syntax
------

     #include <string.h>
     
     size_t strspn(const char *s1, const char *set);

Description
-----------

This function finds the first character in S1 that does not match any
character in SET.  Note that the `NULL' bytes at the end of S1 counts,
so you'll at least get a pointer to the end of the string if nothing
else.

Return Value
------------

The index of the found character.

Example
-------

     int i = strcspn(entry, " \t\b");
     if (entry[i])
       do_something();