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

lapack_int LAPACKE_dsyswapr_work (int matrix_order, char uplo, lapack_int n, double *a, lapack_int i1, lapack_int i2)

Function/Subroutine Documentation

lapack_int LAPACKE_dsyswapr_work ( int  matrix_order,
char  uplo,
lapack_int  n,
double *  a,
lapack_int  i1,
lapack_int  i2 
)

Definition at line 36 of file lapacke_dsyswapr_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dsyswapr( &uplo, &n, a, &i1, &i2 );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
double* a_t = NULL;
/* Allocate memory for temporary array(s) */
a_t = (double*)LAPACKE_malloc( sizeof(double) * n * MAX(1,n) );
if( a_t == NULL ) {
goto exit_level_0;
}
/* Transpose input matrices */
LAPACKE_dsy_trans( matrix_order, uplo, n, a, n, a_t, n );
/* Call LAPACK function and adjust info */
LAPACK_dsyswapr( &uplo, &n, a_t, &i1, &i2 );
info = 0; /* LAPACK call is ok! */
/* Transpose output matrices */
LAPACKE_dsy_trans( LAPACK_COL_MAJOR, uplo, n, a_t, n, a, n );
/* Release memory and exit */
LAPACKE_free( a_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_dsyswapr_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dsyswapr_work", info );
}
return info;
}

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