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[pdclib] / functions / string / strcspn.c
1 /* ----------------------------------------------------------------------------
2  * $Id$
3  * ----------------------------------------------------------------------------
4  * Public Domain C Library - http://pdclib.sourceforge.net
5  * This code is Public Domain. Use, modify, and redistribute at will.
6  * --------------------------------------------------------------------------*/
7
8 #include <__size_t.h>
9
10 size_t strcspn( const char * src_1, const char * src_2 )
11 {
12     size_t len = 0;
13     const char * src_p;
14     while ( src_1[len] != '\0' )
15     {
16         src_p = src_2;
17         while ( *src_p != '\0' )
18         {
19             if ( src_1[len] == *src_p++ )
20             {
21                 return len;
22             }
23         }
24         ++len;
25     }
26     return len;
27 }