1 /*****************************************************************************
2 Copyright (c) 2014, Intel Corp.
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28 *****************************************************************************
29 * Contents: Native high-level C interface to LAPACK function cgerfsx
30 * Author: Intel Corporation
31 *****************************************************************************/
32
33 #include "lapacke_utils.h"
34
LAPACKE_cgerfsx(int matrix_layout,char trans,char equed,lapack_int n,lapack_int nrhs,const lapack_complex_float * a,lapack_int lda,const lapack_complex_float * af,lapack_int ldaf,const lapack_int * ipiv,const float * r,const float * c,const lapack_complex_float * b,lapack_int ldb,lapack_complex_float * x,lapack_int ldx,float * rcond,float * berr,lapack_int n_err_bnds,float * err_bnds_norm,float * err_bnds_comp,lapack_int nparams,float * params)35 lapack_int LAPACKE_cgerfsx( int matrix_layout, char trans, char equed,
36 lapack_int n, lapack_int nrhs,
37 const lapack_complex_float* a, lapack_int lda,
38 const lapack_complex_float* af, lapack_int ldaf,
39 const lapack_int* ipiv, const float* r,
40 const float* c, const lapack_complex_float* b,
41 lapack_int ldb, lapack_complex_float* x,
42 lapack_int ldx, float* rcond, float* berr,
43 lapack_int n_err_bnds, float* err_bnds_norm,
44 float* err_bnds_comp, lapack_int nparams,
45 float* params )
46 {
47 lapack_int info = 0;
48 float* rwork = NULL;
49 lapack_complex_float* work = NULL;
50 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
51 LAPACKE_xerbla( "LAPACKE_cgerfsx", -1 );
52 return -1;
53 }
54 #ifndef LAPACK_DISABLE_NAN_CHECK
55 if( LAPACKE_get_nancheck() ) {
56 /* Optionally check input matrices for NaNs */
57 if( LAPACKE_cge_nancheck( matrix_layout, n, n, a, lda ) ) {
58 return -6;
59 }
60 if( LAPACKE_cge_nancheck( matrix_layout, n, n, af, ldaf ) ) {
61 return -8;
62 }
63 if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
64 return -13;
65 }
66 if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
67 if( LAPACKE_s_nancheck( n, c, 1 ) ) {
68 return -12;
69 }
70 }
71 if( nparams>0 ) {
72 if( LAPACKE_s_nancheck( nparams, params, 1 ) ) {
73 return -23;
74 }
75 }
76 if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
77 if( LAPACKE_s_nancheck( n, r, 1 ) ) {
78 return -11;
79 }
80 }
81 if( LAPACKE_cge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
82 return -15;
83 }
84 }
85 #endif
86 /* Allocate memory for working array(s) */
87 rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
88 if( rwork == NULL ) {
89 info = LAPACK_WORK_MEMORY_ERROR;
90 goto exit_level_0;
91 }
92 work = (lapack_complex_float*)
93 LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
94 if( work == NULL ) {
95 info = LAPACK_WORK_MEMORY_ERROR;
96 goto exit_level_1;
97 }
98 /* Call middle-level interface */
99 info = LAPACKE_cgerfsx_work( matrix_layout, trans, equed, n, nrhs, a, lda,
100 af, ldaf, ipiv, r, c, b, ldb, x, ldx, rcond,
101 berr, n_err_bnds, err_bnds_norm, err_bnds_comp,
102 nparams, params, work, rwork );
103 /* Release memory and exit */
104 LAPACKE_free( work );
105 exit_level_1:
106 LAPACKE_free( rwork );
107 exit_level_0:
108 if( info == LAPACK_WORK_MEMORY_ERROR ) {
109 LAPACKE_xerbla( "LAPACKE_cgerfsx", info );
110 }
111 return info;
112 }
113