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

lapack_int LAPACKE_dsposv (int matrix_order, char uplo, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *b, lapack_int ldb, double *x, lapack_int ldx, lapack_int *iter)

Function/Subroutine Documentation

lapack_int LAPACKE_dsposv ( int  matrix_order,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
double *  a,
lapack_int  lda,
double *  b,
lapack_int  ldb,
double *  x,
lapack_int  ldx,
lapack_int iter 
)

Definition at line 36 of file lapacke_dsposv.c.

{
lapack_int info = 0;
float* swork = NULL;
double* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dsposv", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dpo_nancheck( matrix_order, uplo, n, a, lda ) ) {
return -5;
}
if( LAPACKE_dge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
return -7;
}
#endif
/* Allocate memory for working array(s) */
swork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) * MAX(1,n+nrhs) );
if( swork == NULL ) {
goto exit_level_0;
}
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) * MAX(1,nrhs) );
if( work == NULL ) {
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_dsposv_work( matrix_order, uplo, n, nrhs, a, lda, b, ldb, x,
ldx, work, swork, iter );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_1:
LAPACKE_free( swork );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dsposv", info );
}
return info;
}

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