X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fstring%2Fstrxfrm.c;h=1d9e77762b78a53a8dd07a9e1b0c0f082d74eb0b;hb=b1fc26afebd4d557ff89a44bc21767a8704c3809;hp=60575cb119e4bfcc544daac4709ba2cd26a29d73;hpb=c2f1367984ba4153d892062759c3813020b65a9a;p=pdclib

diff --git a/functions/string/strxfrm.c b/functions/string/strxfrm.c
index 60575cb..1d9e777 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).
@@ -10,7 +6,9 @@
 
 #include <string.h>
 
-/* TODO: Dummy function, no locale support yet. */
+#ifndef REGTEST
+
+#include <locale.h>
 
 size_t strxfrm( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, size_t n )
 {
@@ -20,7 +18,30 @@ size_t strxfrm( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, si
         /* Cannot use strncpy() here as the filling of s1 with '\0' is not part
            of the spec.
         */
-        while ( n-- && ( *s1++ = *s2++ ) );
+        while ( n-- && ( *s1++ = _PDCLIB_lconv.ctype[(unsigned char)*s2++].collation ) );
     }
     return len;
 }
+
+#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
+