X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fctype%2Ftolower.c;h=d051ba5c67e7ce257c3409f58ede8785b1d77644;hb=0e35e82c5e9a0804864839e8fc0e985b1ae41f07;hp=28c435ded8377d125f49ece8b5a8c8b2767007d4;hpb=eb9211f1090ef05e8490a6b35acbe16c9ed9f89a;p=pdclib.old

diff --git a/functions/ctype/tolower.c b/functions/ctype/tolower.c
index 28c435d..d051ba5 100644
--- a/functions/ctype/tolower.c
+++ b/functions/ctype/tolower.c
@@ -10,13 +10,11 @@
 
 #ifndef REGTEST
 
+#include <locale.h>
+
 int tolower( int c )
 {
-    if ( ( c >= 'A' ) && ( c <= 'Z' ) )
-    {
-        c += ( 'a' - 'A' );
-    }
-    return c;
+    return _PDCLIB_lconv.ctype[c].lower;
 }
 
 #endif