LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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lapacke_cgtrfs.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_cgtrfs (int matrix_order, char trans, lapack_int n, lapack_int nrhs, const lapack_complex_float *dl, const lapack_complex_float *d, const lapack_complex_float *du, const lapack_complex_float *dlf, const lapack_complex_float *df, const lapack_complex_float *duf, const lapack_complex_float *du2, const lapack_int *ipiv, const lapack_complex_float *b, lapack_int ldb, lapack_complex_float *x, lapack_int ldx, float *ferr, float *berr)

Function/Subroutine Documentation

lapack_int LAPACKE_cgtrfs ( int  matrix_order,
char  trans,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_float dl,
const lapack_complex_float d,
const lapack_complex_float du,
const lapack_complex_float dlf,
const lapack_complex_float df,
const lapack_complex_float duf,
const lapack_complex_float du2,
const lapack_int ipiv,
const lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float x,
lapack_int  ldx,
float *  ferr,
float *  berr 
)

Definition at line 36 of file lapacke_cgtrfs.c.

{
lapack_int info = 0;
float* rwork = NULL;
lapack_complex_float* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_cgtrfs", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_cge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
return -13;
}
if( LAPACKE_c_nancheck( n, d, 1 ) ) {
return -6;
}
if( LAPACKE_c_nancheck( n, df, 1 ) ) {
return -9;
}
if( LAPACKE_c_nancheck( n-1, dl, 1 ) ) {
return -5;
}
if( LAPACKE_c_nancheck( n-1, dlf, 1 ) ) {
return -8;
}
if( LAPACKE_c_nancheck( n-1, du, 1 ) ) {
return -7;
}
if( LAPACKE_c_nancheck( n-2, du2, 1 ) ) {
return -11;
}
if( LAPACKE_c_nancheck( n-1, duf, 1 ) ) {
return -10;
}
if( LAPACKE_cge_nancheck( matrix_order, n, nrhs, x, ldx ) ) {
return -15;
}
#endif
/* Allocate memory for working array(s) */
rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
if( rwork == NULL ) {
goto exit_level_0;
}
if( work == NULL ) {
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_cgtrfs_work( matrix_order, trans, n, nrhs, dl, d, du, dlf,
df, duf, du2, ipiv, b, ldb, x, ldx, ferr, berr,
work, rwork );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_1:
LAPACKE_free( rwork );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_cgtrfs", info );
}
return info;
}

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