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

lapack_int LAPACKE_dpbcon (int matrix_order, char uplo, lapack_int n, lapack_int kd, const double *ab, lapack_int ldab, double anorm, double *rcond)

Function/Subroutine Documentation

lapack_int LAPACKE_dpbcon ( int  matrix_order,
char  uplo,
lapack_int  n,
lapack_int  kd,
const double *  ab,
lapack_int  ldab,
double  anorm,
double *  rcond 
)

Definition at line 36 of file lapacke_dpbcon.c.

{
lapack_int info = 0;
lapack_int* iwork = NULL;
double* work = NULL;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dpbcon", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dpb_nancheck( matrix_order, uplo, n, kd, ab, ldab ) ) {
return -5;
}
if( LAPACKE_d_nancheck( 1, &anorm, 1 ) ) {
return -7;
}
#endif
/* Allocate memory for working array(s) */
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
if( iwork == NULL ) {
goto exit_level_0;
}
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
if( work == NULL ) {
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_dpbcon_work( matrix_order, uplo, n, kd, ab, ldab, anorm,
rcond, work, iwork );
/* Release memory and exit */
LAPACKE_free( work );
exit_level_1:
LAPACKE_free( iwork );
exit_level_0:
if( info == LAPACK_WORK_MEMORY_ERROR ) {
LAPACKE_xerbla( "LAPACKE_dpbcon", info );
}
return info;
}

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