Repatch (from linux) of OSX IRAF

1 files changed, 31 insertions, 0 deletions

diff --git a/sys/vops/ak/abgtkc.x b/sys/vops/ak/abgtkc.x
new file mode 100644
index 00000000..425db27b
--- /dev/null
+++ b/sys/vops/ak/abgtkc.x
@@ -0,0 +1,31 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# ABGTK -- Vector boolean greater than constant.  C[i], type INT, is set to 1
+# if A[i] is greater than B, else C[i] is set to zero.
+
+procedure abgtkc (a, b, c, npix)
+
+char	a[ARB]
+char	b
+int	c[ARB]
+int	npix
+int	i
+
+begin
+	# The case b==0 is perhaps worth optimizing.  On many machines this
+	# will save a memory fetch.
+
+	if (b == 0) {
+	    do i = 1, npix
+		if (a[i] > 0)
+		    c[i] = 1
+		else
+		    c[i] = 0
+	} else {
+	    do i = 1, npix
+		if (a[i] > b)
+		    c[i] = 1
+		else
+		    c[i] = 0
+	}
+end