LAPACK  3.5.0
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lapacke_dtprfs.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_dtprfs (int matrix_order, char uplo, char trans, char diag, lapack_int n, lapack_int nrhs, const double *ap, const double *b, lapack_int ldb, const double *x, lapack_int ldx, double *ferr, double *berr)

Function/Subroutine Documentation

lapack_int LAPACKE_dtprfs ( int  matrix_order,
char  uplo,
char  trans,
char  diag,
lapack_int  n,
lapack_int  nrhs,
const double *  ap,
const double *  b,
lapack_int  ldb,
const double *  x,
lapack_int  ldx,
double *  ferr,
double *  berr 
)

Definition at line 36 of file lapacke_dtprfs.c.

{
lapack_int info = 0;
lapack_int* iwork = NULL;
double* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dtprfs", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dtp_nancheck( matrix_order, uplo, diag, n, ap ) ) {
return -7;
}
if( LAPACKE_dge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
return -8;
}
if( LAPACKE_dge_nancheck( matrix_order, n, nrhs, x, ldx ) ) {
return -10;
}
#endif
/* Allocate memory for working array(s) */
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
if( iwork == NULL ) {
goto exit_level_0;
}
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
if( work == NULL ) {
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_dtprfs_work( matrix_order, uplo, trans, diag, n, nrhs, ap, b,
ldb, x, ldx, ferr, berr, work, iwork );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_1:
LAPACKE_free( iwork );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dtprfs", info );
}
return info;
}

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