Repatch (from linux) of OSX IRAF

1 files changed, 24 insertions, 0 deletions

diff --git a/sys/vops/lz/arcpi.x b/sys/vops/lz/arcpi.x
new file mode 100644
index 00000000..193f35e1
--- /dev/null
+++ b/sys/vops/lz/arcpi.x
@@ -0,0 +1,24 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# ARCP -- Reciprocal of a constant divided by a vector.  No divide by zero
+# checking is performed.
+
+procedure arcpi (a, b, c, npix)
+
+int	a		# constant numerator
+int	b[ARB]		# vector denominator
+int	c[ARB]		# output vector
+int	npix
+int	i
+
+begin
+	if (a == 0) {
+	    call aclri (c, npix)
+	} else if (a == 1) {
+	    do i = 1, npix
+		c[i] = 1 / b[i]
+	} else {
+	    do i = 1, npix
+		c[i] = a / b[i]
+	}
+end