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

lapack_int LAPACKE_dpbequ_work (int matrix_order, char uplo, lapack_int n, lapack_int kd, const double *ab, lapack_int ldab, double *s, double *scond, double *amax)

Function/Subroutine Documentation

lapack_int LAPACKE_dpbequ_work ( int  matrix_order,
char  uplo,
lapack_int  n,
lapack_int  kd,
const double *  ab,
lapack_int  ldab,
double *  s,
double *  scond,
double *  amax 
)

Definition at line 36 of file lapacke_dpbequ_work.c.

{
lapack_int info = 0;
if( matrix_order == LAPACK_COL_MAJOR ) {
/* Call LAPACK function and adjust info */
LAPACK_dpbequ( &uplo, &n, &kd, ab, &ldab, s, scond, amax, &info );
if( info < 0 ) {
info = info - 1;
}
} else if( matrix_order == LAPACK_ROW_MAJOR ) {
lapack_int ldab_t = MAX(1,kd+1);
double* ab_t = NULL;
/* Check leading dimension(s) */
if( ldab < n ) {
info = -6;
LAPACKE_xerbla( "LAPACKE_dpbequ_work", info );
return info;
}
/* Allocate memory for temporary array(s) */
ab_t = (double*)LAPACKE_malloc( sizeof(double) * ldab_t * MAX(1,n) );
if( ab_t == NULL ) {
goto exit_level_0;
}
/* Transpose input matrices */
LAPACKE_dpb_trans( matrix_order, uplo, n, kd, ab, ldab, ab_t, ldab_t );
/* Call LAPACK function and adjust info */
LAPACK_dpbequ( &uplo, &n, &kd, ab_t, &ldab_t, s, scond, amax, &info );
if( info < 0 ) {
info = info - 1;
}
/* Release memory and exit */
LAPACKE_free( ab_t );
exit_level_0:
LAPACKE_xerbla( "LAPACKE_dpbequ_work", info );
}
} else {
info = -1;
LAPACKE_xerbla( "LAPACKE_dpbequ_work", info );
}
return info;
}

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