1 files changed, 48 insertions, 0 deletions
diff --git a/StdLib/LibC/Ctype/CConv.c b/StdLib/LibC/Ctype/CConv.c
new file mode 100644
index 0000000000..6ad4f8722d
--- /dev/null
+++ b/StdLib/LibC/Ctype/CConv.c
@@ -0,0 +1,48 @@
+/** @file
+  Case conversion functions for <ctype.h>
+
+  The tolower function converts an uppercase letter to a corresponding
+  lowercase letter.  If the argument is a character for which isupper
+  is true and there are one or more corresponding characters, as
+  specified by the current locale, for which islower is true, the tolower
+  function returns one of the corresponding characters (always the same one
+  for any given locale); otherwise, the argument is returned unchanged.
+
+  The toupper function converts a lowercase letter to a corresponding
+  uppercase letter.  If the argument is a character for which islower is true
+  and there are one or more corresponding characters, as specified by the
+  current locale, for which isupper is true, the toupper function returns one
+  of the corresponding characters (always the same one for any given locale);
+  otherwise, the argument is returned unchanged.
+
+  Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+  This program and the accompanying materials are licensed and made available under
+  the terms and conditions of the BSD License that accompanies this distribution.
+  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+#include  <LibConfig.h>
+
+#define NO_CTYPE_MACROS            // So that we don't define the classification macros
+#include  <ctype.h>
+
+int
+tolower(
+  int _c
+  )
+{
+//  return ((_c < 0 || _c > 127) ? _c : _lConvT[_c]);
+  return (isupper(_c) ? _lConvT[_c] : _c);
+}
+
+int toupper(
+  int _c
+  )
+{
+//  return ((_c < 0 || _c > 127) ? _c : _uConvT[_c]);
+  return (islower(_c) ? _uConvT[_c] : _c);
+}