1 files changed, 25 insertions, 0 deletions
diff --git a/libc/misc/ctypefn.c b/libc/misc/ctypefn.c
new file mode 100644
index 0000000..921da31
--- /dev/null
+++ b/libc/misc/ctypefn.c
@@ -0,0 +1,25 @@
+/* Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
+ * This file is part of the Linux-8086 C library and is distributed
+ * under the GNU Library General Public License.
+ */
+
+/*
+ *  CTYPE.C	Character classification and conversion
+ */
+
+#include <ctype.h>
+
+#undef	toupper
+#undef	tolower
+
+int toupper(c)
+int c;
+{
+   return(islower(c) ? (c ^ 0x20) : (c));
+}
+
+int tolower(c)
+int c;
+{
+   return(isupper(c) ? (c ^ 0x20) : (c));
+}