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-rw-r--r--2.3-1/src/c/matrixOperations/division/zldivma.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/2.3-1/src/c/matrixOperations/division/zldivma.c b/2.3-1/src/c/matrixOperations/division/zldivma.c
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+++ b/2.3-1/src/c/matrixOperations/division/zldivma.c
@@ -0,0 +1,125 @@
+/*
+ * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ * Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ * This file must be used under the terms of the CeCILL.
+ * This source file is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at
+ * http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include "matrixDivision.h"
+#include "lapack.h"
+
+void zldivma( doubleComplex* in1, int lines1, int columns1 ,
+ doubleComplex* in2, int lines2, int columns2 ,
+ doubleComplex* out )
+{
+
+
+ char cNorm = 0;
+ int iExit = 0;
+
+ /*temporary variables*/
+ int iWork = 0;
+ int iInfo = 0;
+ int iMax = 0;
+ int iRank = 0;
+
+ double dblRcond = 0;
+
+ double dblEps = 0;
+ double dblAnorm = 0;
+
+ doubleComplex *pAf = NULL;
+ doubleComplex *pXb = NULL;
+ doubleComplex *pDwork = NULL;
+
+
+ double *pRwork = NULL;
+
+
+ int *pIpiv = NULL;
+ int *pJpvt = NULL;
+
+ iWork = max(2*columns2, min(lines2, columns2) + max(2 * min(lines2, columns2), max(lines2 + 1, min(lines2, columns2) + lines1)));
+
+
+
+ /* Array allocations*/
+
+
+ pAf = (doubleComplex*)malloc(sizeof(doubleComplex) *(unsigned int) lines1 *(unsigned int)columns1);
+ pXb = (doubleComplex*)malloc(sizeof(doubleComplex) *(unsigned int) max(lines1,columns1) *(unsigned int) columns2);
+
+
+ pIpiv = (int*)malloc(sizeof(int) * (unsigned int)columns1);
+ pJpvt = (int*)malloc(sizeof(int) * (unsigned int)columns1);
+ pRwork = (double*)malloc(sizeof(double) * (unsigned int)columns1*2);
+
+
+ cNorm = '1';
+ pDwork = (doubleComplex*)malloc(sizeof(doubleComplex) * (unsigned int)iWork);
+ dblEps = getRelativeMachinePrecision() ;
+ dblAnorm = C2F(zlange)(&cNorm, &lines1, &columns1, in1, &lines1, pDwork);
+
+ if(lines1 == columns1)
+ {
+ cNorm = 'F';
+ C2F(zlacpy)(&cNorm, &columns1, &columns1, in1, &columns1, pAf, &columns1);
+
+ C2F(zlacpy)(&cNorm, &columns1, &columns2, in2, &columns1, pXb, &columns1);
+ C2F(zgetrf)(&columns1, &columns1, pAf, &columns1, pIpiv, &iInfo);
+ if(iInfo == 0)
+ {
+ cNorm = '1';
+ C2F(zgecon)(&cNorm, &columns1, pAf, &columns1, &dblAnorm, &dblRcond, pDwork, pRwork, &iInfo);
+ if(dblRcond > sqrt(dblEps))
+ {
+ cNorm = 'N';
+ C2F(zgetrs)(&cNorm, &columns1, &columns2, pAf, &columns1, pIpiv, pXb, &columns1, &iInfo);
+ cNorm = 'F';
+ C2F(zlacpy)(&cNorm, &columns1, &columns2, pXb, &columns1, out, &columns1);
+
+ iExit = 1;
+ }
+
+ }
+ }
+
+ if(iExit == 0)
+ {
+ dblRcond = sqrt(dblEps);
+ cNorm = 'F';
+ iMax = max(lines1, columns1);
+ C2F(zlacpy)(&cNorm, &lines1, &columns2, in2, &lines1, pXb, &iMax);
+ memset(pJpvt, 0x00,(unsigned int) sizeof(int) * (unsigned int)columns1);
+ C2F(zgelsy)( &lines1, &columns1, &columns2, in1, &lines1, pXb, &iMax,
+ pJpvt, &dblRcond, &iRank, pDwork, &iWork, pRwork, &iInfo);
+
+
+ if(iInfo == 0)
+ {
+
+ cNorm = 'F';
+ C2F(zlacpy)(&cNorm, &columns1, &columns2, pXb, &iMax, out, &columns1);
+
+ }
+ }
+
+
+
+
+
+ free(pAf);
+ free(pXb);
+ free(pIpiv);
+ free(pJpvt);
+ free(pRwork);
+ free(pDwork);
+
+}