lapacke_zgeevx.c
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00001 /*****************************************************************************
00002   Copyright (c) 2010, Intel Corp.
00003   All rights reserved.
00004 
00005   Redistribution and use in source and binary forms, with or without
00006   modification, are permitted provided that the following conditions are met:
00007 
00008     * Redistributions of source code must retain the above copyright notice,
00009       this list of conditions and the following disclaimer.
00010     * Redistributions in binary form must reproduce the above copyright
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00013     * Neither the name of Intel Corporation nor the names of its contributors
00014       may be used to endorse or promote products derived from this software
00015       without specific prior written permission.
00016 
00017   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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00028 ******************************************************************************
00029 * Contents: Native high-level C interface to LAPACK function zgeevx
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_zgeevx( int matrix_order, char balanc, char jobvl,
00038                            char jobvr, char sense, lapack_int n,
00039                            lapack_complex_double* a, lapack_int lda,
00040                            lapack_complex_double* w, lapack_complex_double* vl,
00041                            lapack_int ldvl, lapack_complex_double* vr,
00042                            lapack_int ldvr, lapack_int* ilo, lapack_int* ihi,
00043                            double* scale, double* abnrm, double* rconde,
00044                            double* rcondv )
00045 {
00046     lapack_int info = 0;
00047     lapack_int lwork = -1;
00048     double* rwork = NULL;
00049     lapack_complex_double* work = NULL;
00050     lapack_complex_double work_query;
00051     if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
00052         LAPACKE_xerbla( "LAPACKE_zgeevx", -1 );
00053         return -1;
00054     }
00055 #ifndef LAPACK_DISABLE_NAN_CHECK
00056     /* Optionally check input matrices for NaNs */
00057     if( LAPACKE_zge_nancheck( matrix_order, n, n, a, lda ) ) {
00058         return -7;
00059     }
00060 #endif
00061     /* Allocate memory for working array(s) */
00062     rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*n) );
00063     if( rwork == NULL ) {
00064         info = LAPACK_WORK_MEMORY_ERROR;
00065         goto exit_level_0;
00066     }
00067     /* Query optimal working array(s) size */
00068     info = LAPACKE_zgeevx_work( matrix_order, balanc, jobvl, jobvr, sense, n, a,
00069                                 lda, w, vl, ldvl, vr, ldvr, ilo, ihi, scale,
00070                                 abnrm, rconde, rcondv, &work_query, lwork,
00071                                 rwork );
00072     if( info != 0 ) {
00073         goto exit_level_1;
00074     }
00075     lwork = LAPACK_Z2INT( work_query );
00076     /* Allocate memory for work arrays */
00077     work = (lapack_complex_double*)
00078         LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
00079     if( work == NULL ) {
00080         info = LAPACK_WORK_MEMORY_ERROR;
00081         goto exit_level_1;
00082     }
00083     /* Call middle-level interface */
00084     info = LAPACKE_zgeevx_work( matrix_order, balanc, jobvl, jobvr, sense, n, a,
00085                                 lda, w, vl, ldvl, vr, ldvr, ilo, ihi, scale,
00086                                 abnrm, rconde, rcondv, work, lwork, rwork );
00087     /* Release memory and exit */
00088     LAPACKE_free( work );
00089 exit_level_1:
00090     LAPACKE_free( rwork );
00091 exit_level_0:
00092     if( info == LAPACK_WORK_MEMORY_ERROR ) {
00093         LAPACKE_xerbla( "LAPACKE_zgeevx", info );
00094     }
00095     return info;
00096 }


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autogenerated on Sat Jun 8 2019 18:55:55