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

lapack_int LAPACKE_dtrevc (int matrix_order, char side, char howmny, lapack_logical *select, lapack_int n, const double *t, lapack_int ldt, double *vl, lapack_int ldvl, double *vr, lapack_int ldvr, lapack_int mm, lapack_int *m)

Function/Subroutine Documentation

lapack_int LAPACKE_dtrevc ( int  matrix_order,
char  side,
char  howmny,
lapack_logical select,
lapack_int  n,
const double *  t,
lapack_int  ldt,
double *  vl,
lapack_int  ldvl,
double *  vr,
lapack_int  ldvr,
lapack_int  mm,
lapack_int m 
)

Definition at line 36 of file lapacke_dtrevc.c.

{
lapack_int info = 0;
double* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dtrevc", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dge_nancheck( matrix_order, n, n, t, ldt ) ) {
return -6;
}
if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'l' ) ) {
if( LAPACKE_dge_nancheck( matrix_order, n, mm, vl, ldvl ) ) {
return -8;
}
}
if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'r' ) ) {
if( LAPACKE_dge_nancheck( matrix_order, n, mm, vr, ldvr ) ) {
return -10;
}
}
#endif
/* Allocate memory for working array(s) */
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
if( work == NULL ) {
goto exit_level_0;
}
/* Call middle-level interface */
info = LAPACKE_dtrevc_work( matrix_order, side, howmny, select, n, t, ldt,
vl, ldvl, vr, ldvr, mm, m, work );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dtrevc", info );
}
return info;
}

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