X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fwchar%2Fwmemcmp.c;fp=functions%2Fwchar%2Fwmemcmp.c;h=2d58914de3de7aa6798c1c14931cfe9e848f0f10;hb=507d3eccbf4c74e4694165f9e00ab79d894b4f66;hp=0000000000000000000000000000000000000000;hpb=0150bb9ffe66236b6a47c5800d8beef669d5c047;p=pdclib.old

diff --git a/functions/wchar/wmemcmp.c b/functions/wchar/wmemcmp.c
new file mode 100644
index 0000000..2d58914
--- /dev/null
+++ b/functions/wchar/wmemcmp.c
@@ -0,0 +1,39 @@
+/* wmemcmp( const wchar_t *, const wchar_t *, size_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
+
+int wmemcmp( const wchar_t * p1, const wchar_t * p2, size_t n )
+{
+    while ( n-- )
+    {
+        if ( *p1 != *p2 )
+        {
+            return *p1 - *p2;
+        }
+        ++p1;
+        ++p2;
+    }
+    return 0;
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    wchar_t const xxxxx[] = L"xxxxx";
+    TESTCASE( wmemcmp( wabcde, wabcdx, 5 ) < 0 );
+    TESTCASE( wmemcmp( wabcde, wabcdx, 4 ) == 0 );
+    TESTCASE( wmemcmp( wabcde, xxxxx,  0 ) == 0 );
+    TESTCASE( wmemcmp( xxxxx,  wabcde, 1 ) > 0 );
+    return 0;
+}
+#endif