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

lapack_int LAPACKE_cupmtr_work (int matrix_order, char side, char uplo, char trans, lapack_int m, lapack_int n, const lapack_complex_float *ap, const lapack_complex_float *tau, lapack_complex_float *c, lapack_int ldc, lapack_complex_float *work)

Function/Subroutine Documentation

lapack_int LAPACKE_cupmtr_work ( int  matrix_order,
char  side,
char  uplo,
char  trans,
lapack_int  m,
lapack_int  n,
const lapack_complex_float ap,
const lapack_complex_float tau,
lapack_complex_float c,
lapack_int  ldc,
lapack_complex_float work 
)

Definition at line 36 of file lapacke_cupmtr_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_cupmtr( &side, &uplo, &trans, &m, &n, ap, tau, c, &ldc, work,
&info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int r = LAPACKE_lsame( side, 'l' ) ? m : n;
lapack_int ldc_t = MAX(1,m);
lapack_complex_float* c_t = NULL;
lapack_complex_float* ap_t = NULL;
/* Check leading dimension(s) */
if( ldc < n ) {
info = -10;
LAPACKE_xerbla( "LAPACKE_cupmtr_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
LAPACKE_malloc( sizeof(lapack_complex_float) * ldc_t * MAX(1,n) );
if( c_t == NULL ) {
goto exit_level_0;
}
( MAX(1,r) * MAX(2,r+1) ) / 2 );
if( ap_t == NULL ) {
goto exit_level_1;
}
/* Transpose input matrices */
LAPACKE_cge_trans( matrix_order, m, n, c, ldc, c_t, ldc_t );
LAPACKE_cpp_trans( matrix_order, uplo, r, ap, ap_t );
/* Call LAPACK function and adjust info */
LAPACK_cupmtr( &side, &uplo, &trans, &m, &n, ap_t, tau, c_t, &ldc_t,
work, &info );
if( info < 0 ) {
info = info - 1;
}
/* Transpose output matrices */
LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
/* Release memory and exit */
LAPACKE_free( ap_t );
exit_level_1:
LAPACKE_free( c_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_cupmtr_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_cupmtr_work", info );
}
return info;
}

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