X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstring%2Fstrcoll.c;h=a139adb4728171c50fecc6d0941d3820d1eaa173;hb=d446b1531b82def47b9b684517a7c629c7400aab;hp=3693e48071f975ebd4b631556c7172d0d416e327;hpb=c0169638bd02098717cb23fbbca3bcc4e4caccf0;p=pdclib

diff --git a/functions/string/strcoll.c b/functions/string/strcoll.c
index 3693e48..a139adb 100644
--- a/functions/string/strcoll.c
+++ b/functions/string/strcoll.c
@@ -1,20 +1,43 @@
-/* $Id$ */
-
-/* Release $Name$ */
-
 /* strcoll( const char *, const char * )
 
    This file is part of the Public Domain C Library (PDCLib).
    Permission is granted to use, modify, and / or redistribute at will.
 */
 
-/* TODO: Dummy function, PDCLib does not support locales yet. */
+#include <string.h>
+
+#ifndef REGTEST
 
-int strcmp( const char * s1, const char * s2 );
+#include <locale.h>
 
 int strcoll( const char * s1, const char * s2 )
 {
-    return strcmp( s1, s2 );
+    const _PDCLIB_ctype_t * ctype = _PDCLIB_lconv.ctype;
+
+    while ( ( *s1 ) && ( ctype[(unsigned char)*s1].collation == ctype[(unsigned char)*s2].collation ) )
+    {
+        ++s1;
+        ++s2;
+    }
+    return ( ctype[(unsigned char)*s1].collation == ctype[(unsigned char)*s2].collation );
+}
+
+#endif
+
+#ifdef TEST
+
+#include "_PDCLIB_test.h"
+
+int main( void )
+{
+    char cmpabcde[] = "abcde";
+    char empty[] = "";
+    TESTCASE( strcmp( abcde, cmpabcde ) == 0 );
+    TESTCASE( strcmp( abcde, abcdx ) < 0 );
+    TESTCASE( strcmp( abcdx, abcde ) > 0 );
+    TESTCASE( strcmp( empty, abcde ) < 0 );
+    TESTCASE( strcmp( abcde, empty ) > 0 );
+    return TEST_RESULTS;
 }
 
-#warning Test driver missing.
+#endif