From 48ef7704c03e7e554c05de01bf8d1d70c16cb6f4 Mon Sep 17 00:00:00 2001
From: ProjectRevoTPP <projectrevotpp@hotmail.com>
Date: Wed, 20 Dec 2017 16:34:35 -0500
Subject: add libc building to agbcc.

---
 libc/string/strupr.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 libc/string/strupr.c

(limited to 'libc/string/strupr.c')

diff --git a/libc/string/strupr.c b/libc/string/strupr.c
new file mode 100644
index 0000000..d7f7c12
--- /dev/null
+++ b/libc/string/strupr.c
@@ -0,0 +1,49 @@
+/*
+FUNCTION
+	<<strupr>>---force string to uppercase
+	
+INDEX
+	strupr
+
+ANSI_SYNOPSIS
+	#include <string.h>
+	char *strupr(char *<[a]>);
+
+TRAD_SYNOPSIS
+	#include <string.h>
+	char *strupr(<[a]>)
+	char *<[a]>;
+
+DESCRIPTION
+	<<strupr>> converts each characters in the string at <[a]> to
+	upper case.
+
+RETURNS
+	<<strupr>> returns its argument, <[a]>.
+
+PORTABILITY
+<<strupr>> is not widely portable.
+
+<<strupr>> requires no supporting OS subroutines.
+
+QUICKREF
+	strupr */
+
+#include <string.h>
+#include <ctype.h>
+
+char *
+strupr (a)
+     char *a;
+{
+  char *ret = a;
+
+  while (*a != '\0')
+    {
+      if (islower (*a))
+	*a = toupper (*a);
+      ++a;
+    }
+
+  return ret;
+}
-- 
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