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-rw-r--r--libc/ctype/toupper.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/libc/ctype/toupper.c b/libc/ctype/toupper.c
new file mode 100644
index 00000000..6b52363d
--- /dev/null
+++ b/libc/ctype/toupper.c
@@ -0,0 +1,21 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <compiler.h>
+#include "ctype.h"
+
+int __attrconst toupper (int cha)
+{
+ if((cha >= 'a') && (cha <= 'z'))
+ return(cha - 'a' + 'A');
+ return(cha);
+}
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