1 files changed, 16 insertions, 0 deletions
diff --git a/sys/gio/nspp/sysint/intt.x b/sys/gio/nspp/sysint/intt.x
new file mode 100644
index 00000000..315248fd
--- /dev/null
+++ b/sys/gio/nspp/sysint/intt.x
@@ -0,0 +1,16 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<nspp.h>
+
+# INTT -- Test whether the argument is an integer (return true) or a real
+# (return false).  This works, hopefully, because legal NCAR metacode integers
+# are always less than 2 ** 15, while real numbers will always appear to be
+# large positive or negative integers.
+
+bool procedure intt (value)
+
+int	value
+
+begin
+	return (value > 0 && value < INTT_TESTVAL)
+end