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1 files changed, 44 insertions, 0 deletions

diff --git a/sys/plio/plleq.x b/sys/plio/plleq.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<plio.h>
+
+# PLL_EQUAL -- Compare two line lists for equality.
+
+bool procedure pll_equal (l1, l2)
+
+short	l1[ARB]			#I line list 1
+short	l2[ARB]			#I line list 2
+
+int	i, off
+int	l1_len, l1_first
+int	l2_len, l2_first
+
+begin
+	# Support old format line lists.
+	if (LL_OLDFORMAT(l1)) {
+	    l1_len = OLL_LEN(l1)
+	    l1_first = OLL_FIRST
+	} else {
+	    l1_len = LL_LEN(l1)
+	    l1_first = LL_FIRST(l1)
+	}
+
+	# Support old format line lists.
+	if (LL_OLDFORMAT(l2)) {
+	    l2_len = OLL_LEN(l2)
+	    l2_first = OLL_FIRST
+	} else {
+	    l2_len = LL_LEN(l2)
+	    l2_first = LL_FIRST(l2)
+	}
+
+	if (l1_len != l2_len)
+	    return (false)
+
+	off = l2_first - l1_first
+	do i = l1_first, l1_len
+	    if (l1[i] != l2[i+off])
+		return (false)
+
+	return (true)
+end