Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include <math.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
#include "libc-extension.hh"
+#include <cmath>
+#include <cstdio>
+#include <cstring>
+#include <cctype>
+
char*
strnlwr (char* start ,int n)
{