lapacke_csteqr_work.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
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00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function csteqr
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_csteqr_work( int matrix_order, char compz, lapack_int n,
00038                                 float* d, float* e, lapack_complex_float* z,
00039                                 lapack_int ldz, float* work )
00040 {
00041     lapack_int info = 0;
00042     if( matrix_order == LAPACK_COL_MAJOR ) {
00043         /* Call LAPACK function and adjust info */
00044         LAPACK_csteqr( &compz, &n, d, e, z, &ldz, work, &info );
00045         if( info < 0 ) {
00046             info = info - 1;
00047         }
00048     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00049         lapack_int ldz_t = MAX(1,n);
00050         lapack_complex_float* z_t = NULL;
00051         /* Check leading dimension(s) */
00052         if( ldz < n ) {
00053             info = -7;
00054             LAPACKE_xerbla( "LAPACKE_csteqr_work", info );
00055             return info;
00056         }
00057         /* Allocate memory for temporary array(s) */
00058         if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
00059             z_t = (lapack_complex_float*)
00060                 LAPACKE_malloc( sizeof(lapack_complex_float) *
00061                                 ldz_t * MAX(1,n) );
00062             if( z_t == NULL ) {
00063                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00064                 goto exit_level_0;
00065             }
00066         }
00067         /* Transpose input matrices */
00068         if( LAPACKE_lsame( compz, 'v' ) ) {
00069             LAPACKE_cge_trans( matrix_order, n, n, z, ldz, z_t, ldz_t );
00070         }
00071         /* Call LAPACK function and adjust info */
00072         LAPACK_csteqr( &compz, &n, d, e, z_t, &ldz_t, work, &info );
00073         if( info < 0 ) {
00074             info = info - 1;
00075         }
00076         /* Transpose output matrices */
00077         if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
00078             LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
00079         }
00080         /* Release memory and exit */
00081         if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
00082             LAPACKE_free( z_t );
00083         }
00084 exit_level_0:
00085         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00086             LAPACKE_xerbla( "LAPACKE_csteqr_work", info );
00087         }
00088     } else {
00089         info = -1;
00090         LAPACKE_xerbla( "LAPACKE_csteqr_work", info );
00091     }
00092     return info;
00093 }


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autogenerated on Sat Jun 8 2019 18:55:52