X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;ds=sidebyside;f=functions%2Fwchar%2Fwcscspn.c;fp=functions%2Fwchar%2Fwcscspn.c;h=1f311c61e7b0772f73321e2f95a599bb3d218aac;hb=14b5b78e19a79f590233caee7848e7cb19084088;hp=0000000000000000000000000000000000000000;hpb=41777e3d5dc655f59a8c3bcd071639e6878e853a;p=pdclib

diff --git a/functions/wchar/wcscspn.c b/functions/wchar/wcscspn.c
new file mode 100644
index 0000000..1f311c6
--- /dev/null
+++ b/functions/wchar/wcscspn.c
@@ -0,0 +1,48 @@
+/* wcscspn( const wchar_t *, const wchar_t * )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <wchar.h>
+
+#ifndef REGTEST
+
+size_t wcscspn( const wchar_t * s1, const wchar_t * s2 )
+{
+    size_t len = 0;
+    const wchar_t * p;
+    while ( s1[len] )
+    {
+        p = s2;
+        while ( *p )
+        {
+            if ( s1[len] == *p++ )
+            {
+                return len;
+            }
+        }
+        ++len;
+    }
+    return len;
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    TESTCASE( wcscspn( wabcde, L"x" ) == 5 );
+    TESTCASE( wcscspn( wabcde, L"xyz" ) == 5 );
+    TESTCASE( wcscspn( wabcde, L"zyx" ) == 5 );
+    TESTCASE( wcscspn( wabcdx, L"x" ) == 4 );
+    TESTCASE( wcscspn( wabcdx, L"xyz" ) == 4 );
+    TESTCASE( wcscspn( wabcdx, L"zyx" ) == 4 );
+    TESTCASE( wcscspn( wabcde, L"a" ) == 0 );
+    TESTCASE( wcscspn( wabcde, L"abc" ) == 0 );
+    TESTCASE( wcscspn( wabcde, L"cba" ) == 0 );
+    return TEST_RESULTS;
+}
+#endif