Repatch (from linux) of OSX IRAF

1 files changed, 34 insertions, 0 deletions

diff --git a/math/curfit/cvzeror.x b/math/curfit/cvzeror.x
new file mode 100644
index 00000000..bd84029f
--- /dev/null
+++ b/math/curfit/cvzeror.x
@@ -0,0 +1,34 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include "curfitdef.h"
+
+# CVZERO -- Procedure to zero the accumulators before doing
+# a new fit in accumulate mode. The inner products of the basis functions
+# are accumulated in the CV_ORDER(cv) by CV_NCOEFF(cv) array MATRIX, while
+# the inner products of the basis functions and the data ordinates are
+# accumulated in the CV_NCOEFF(cv)-vector VECTOR.
+
+procedure cvzero (cv)
+
+pointer	cv	# pointer to curve descriptor
+
+errchk	mfree
+
+begin
+	# zero the accumulators
+	CV_NPTS(cv) = 0
+	call aclrr (MATRIX(CV_MATRIX(cv)), CV_ORDER(cv)*CV_NCOEFF(cv))
+	call aclrr (VECTOR(CV_VECTOR(cv)), CV_NCOEFF(cv))
+
+	# free the basis functions defined from previous calls to cvrefit
+	if (CV_BASIS(cv) != NULL) {
+	    call mfree (CV_BASIS(cv), TY_REAL)
+	    call mfree (CV_WY(cv), TY_REAL)
+	    CV_BASIS(cv) = NULL
+	    CV_WY(cv) = NULL
+	    if (CV_LEFT(cv) != NULL) {
+		call mfree (CV_LEFT(cv), TY_INT)
+		CV_LEFT(cv) = NULL
+	    }
+	}
+end