1 files changed, 18 insertions, 0 deletions
diff --git a/sys/fmtio/strupr.x b/sys/fmtio/strupr.x
new file mode 100644
index 00000000..6e80108c
--- /dev/null
+++ b/sys/fmtio/strupr.x
@@ -0,0 +1,18 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<ctype.h>
+
+# STRUPR -- Convert string to upper case.
+
+procedure strupr (str)
+
+char	str[ARB]
+int	ip
+
+begin
+	do ip = 1, ARB
+	    if (str[ip] == EOS)
+		return
+	    else if (IS_LOWER (str[ip]))
+		str[ip] = TO_UPPER (str[ip])
+end