X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstring%2Fstrxfrm.c;h=3692257b234f1fa02e42297ec0749390f6bc5f2f;hp=578eb4ba7a5c536b3c129bc434391c0024cbcee9;hb=da0f3f353d417fed71f358a48d5d5394145e460d;hpb=c0169638bd02098717cb23fbbca3bcc4e4caccf0

diff --git a/functions/string/strxfrm.c b/functions/string/strxfrm.c
index 578eb4b..3692257 100644
--- a/functions/string/strxfrm.c
+++ b/functions/string/strxfrm.c
@@ -1,7 +1,3 @@
-/* $Id$ */
-
-/* Release $Name$ */
-
 /* strxfrm( char *, const char *, size_t )
 
    This file is part of the Public Domain C Library (PDCLib).
@@ -10,19 +6,43 @@
 
 #include <string.h>
 
-/* TODO: Dummy function, no locale support yet. */
+#ifndef REGTEST
+
+#include "_PDCLIB_locale.h"
 
 size_t strxfrm( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, size_t n )
 {
+    const _PDCLIB_ctype_t *ctype = _PDCLIB_threadlocale()->_CType;
     size_t len = strlen( s2 );
     if ( len < n )
     {
         /* Cannot use strncpy() here as the filling of s1 with '\0' is not part
            of the spec.
         */
-        while ( n-- && ( *s1++ = *s2++ ) );
+        while ( n-- && ( *s1++ = ctype[(unsigned char)*s2++].collation ) );
     }
     return len;
 }
 
-#warning Test driver missing.
+#endif
+
+#ifdef TEST
+#include "_PDCLIB_test.h"
+
+int main( void )
+{
+    char s[] = "xxxxxxxxxxx";
+    TESTCASE( strxfrm( NULL, "123456789012", 0 ) == 12 );
+    TESTCASE( strxfrm( s, "123456789012", 12 ) == 12 );
+    /*
+    The following test case is true in *this* implementation, but doesn't have to.
+    TESTCASE( s[0] == 'x' );
+    */
+    TESTCASE( strxfrm( s, "1234567890", 11 ) == 10 );
+    TESTCASE( s[0] == '1' );
+    TESTCASE( s[9] == '0' );
+    TESTCASE( s[10] == '\0' );
+    return TEST_RESULTS;
+}
+#endif
+