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lapacke_dtptri_work.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_dtptri_work (int matrix_order, char uplo, char diag, lapack_int n, double *ap)

Function/Subroutine Documentation

lapack_int LAPACKE_dtptri_work ( int  matrix_order,
char  uplo,
char  diag,
lapack_int  n,
double *  ap 
)

Definition at line 36 of file lapacke_dtptri_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dtptri( &uplo, &diag, &n, ap, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
double* ap_t = NULL;
/* Allocate memory for temporary array(s) */
ap_t = (double*)
LAPACKE_malloc( sizeof(double) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
if( ap_t == NULL ) {
goto exit_level_0;
}
/* Transpose input matrices */
LAPACKE_dtp_trans( matrix_order, uplo, diag, n, ap, ap_t );
/* Call LAPACK function and adjust info */
LAPACK_dtptri( &uplo, &diag, &n, ap_t, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_dtp_trans( LAPACK_COL_MAJOR, uplo, diag, n, ap_t, ap );
/* Release memory and exit */
LAPACKE_free( ap_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_dtptri_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dtptri_work", info );
}
return info;
}

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