lapack_int LAPACKE_dgbrfs( int matrix_layout, char trans, lapack_int n,
lapack_int kl, lapack_int ku, lapack_int nrhs,
const double* ab, lapack_int ldab, const double* afb,
lapack_int ldafb, const lapack_int* ipiv,
const double* b, lapack_int ldb, double* x,
lapack_int ldx, double* ferr, double* berr )
{
lapack_int info = 0;
lapack_int* iwork = NULL;
double* work = NULL;
if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dgbrfs", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, ku, ab, ldab ) ) {
return -7;
}
if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, kl+ku, afb, ldafb ) ) {
return -9;
}
if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
return -12;
}
if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, x, ldx ) ) {
return -14;
}
#endif
/* Allocate memory for working array(s) */
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
if( iwork == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_0;
}
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
if( work == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_dgbrfs_work( matrix_layout, trans, n, kl, ku, nrhs, ab, ldab,
afb, ldafb, ipiv, b, ldb, x, ldx, ferr, berr,
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_dgbrfs", info );
}
return info;
}
lapack_int LAPACKE_dgbcon( int matrix_layout, char norm, lapack_int n,
lapack_int kl, lapack_int ku, const double* ab,
lapack_int ldab, const lapack_int* ipiv,
double anorm, double* rcond )
{
lapack_int info = 0;
lapack_int* iwork = NULL;
double* work = NULL;
if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dgbcon", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, kl+ku, ab, ldab ) ) {
return -6;
}
if( LAPACKE_d_nancheck( 1, &anorm, 1 ) ) {
return -9;
}
#endif
/* Allocate memory for working array(s) */
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
if( iwork == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_0;
}
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
if( work == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_dgbcon_work( matrix_layout, norm, n, kl, ku, ab, ldab, ipiv,
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_dgbcon", info );
}
return info;
}
lapack_int LAPACKE_dgbequ( int matrix_layout, lapack_int m, lapack_int n,
lapack_int kl, lapack_int ku, const double* ab,
lapack_int ldab, double* r, double* c,
double* rowcnd, double* colcnd, double* amax )
{
if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dgbequ", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
if( LAPACKE_get_nancheck() ) {
/* Optionally check input matrices for NaNs */
if( LAPACKE_dgb_nancheck( matrix_layout, m, n, kl, ku, ab, ldab ) ) {
return -6;
}
}
#endif
return LAPACKE_dgbequ_work( matrix_layout, m, n, kl, ku, ab, ldab, r, c,
rowcnd, colcnd, amax );
}
lapack_logical LAPACKE_dtb_nancheck( int matrix_order, char uplo, char diag,
lapack_int n, lapack_int kd,
const double* ab,
lapack_int ldab )
{
lapack_logical colmaj, upper, unit;
if( ab == NULL ) return (lapack_logical) 0;
colmaj = ( matrix_order == LAPACK_COL_MAJOR );
upper = LAPACKE_lsame( uplo, 'u' );
unit = LAPACKE_lsame( diag, 'u' );
if( ( !colmaj && ( matrix_order != LAPACK_ROW_MAJOR ) ) ||
( !upper && !LAPACKE_lsame( uplo, 'l' ) ) ||
( !unit && !LAPACKE_lsame( diag, 'n' ) ) ) {
/* Just exit if any of input parameters are wrong */
return (lapack_logical) 0;
}
if( unit ) {
/* Unit case, diagonal should be excluded from the check for NaN. */
if( colmaj ) {
if( upper ) {
return LAPACKE_dgb_nancheck( matrix_order, n-1, n-1, 0, kd-1,
&ab[ldab], ldab );
} else {
return LAPACKE_dgb_nancheck( matrix_order, n-1, n-1, kd-1, 0,
&ab[1], ldab );
}
} else {
if( upper ) {
return LAPACKE_dgb_nancheck( matrix_order, n-1, n-1, 0, kd-1,
&ab[1], ldab );
} else {
return LAPACKE_dgb_nancheck( matrix_order, n-1, n-1, kd-1, 0,
&ab[ldab], ldab );
}
}
} else {
/* Non-unit case */
if( upper ) {
return LAPACKE_dgb_nancheck( matrix_order, n, n, 0, kd, ab, ldab );
} else {
return LAPACKE_dgb_nancheck( matrix_order, n, n, kd, 0, ab, ldab );
}
}
}
lapack_int LAPACKE_dgbsvx( int matrix_layout, char fact, char trans,
lapack_int n, lapack_int kl, lapack_int ku,
lapack_int nrhs, double* ab, lapack_int ldab,
double* afb, lapack_int ldafb, lapack_int* ipiv,
char* equed, double* r, double* c, double* b,
lapack_int ldb, double* x, lapack_int ldx,
double* rcond, double* ferr, double* berr,
double* rpivot )
{
lapack_int info = 0;
lapack_int* iwork = NULL;
double* work = NULL;
if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dgbsvx", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, ku, ab, ldab ) ) {
return -8;
}
if( LAPACKE_lsame( fact, 'f' ) ) {
if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, kl+ku, afb,
ldafb ) ) {
return -10;
}
}
if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
return -16;
}
if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
LAPACKE_lsame( *equed, 'c' ) ) ) {
if( LAPACKE_d_nancheck( n, c, 1 ) ) {
return -15;
}
}
if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
LAPACKE_lsame( *equed, 'r' ) ) ) {
if( LAPACKE_d_nancheck( n, r, 1 ) ) {
return -14;
}
}
#endif
/* Allocate memory for working array(s) */
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
if( iwork == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_0;
}
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
if( work == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_dgbsvx_work( matrix_layout, fact, trans, n, kl, ku, nrhs, ab,
ldab, afb, ldafb, ipiv, equed, r, c, b, ldb, x,
ldx, rcond, ferr, berr, work, iwork );
/* Backup significant data from working array(s) */
*rpivot = work[0];
/* 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_dgbsvx", info );
}
return info;
}
lapack_int LAPACKE_dgbrfsx( int matrix_order, char trans, char equed,
lapack_int n, lapack_int kl, lapack_int ku,
lapack_int nrhs, const double* ab, lapack_int ldab,
const double* afb, lapack_int ldafb,
const lapack_int* ipiv, const double* r,
const double* c, const double* b, lapack_int ldb,
double* x, lapack_int ldx, double* rcond,
double* berr, lapack_int n_err_bnds,
double* err_bnds_norm, double* err_bnds_comp,
lapack_int nparams, double* params )
{
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_dgbrfsx", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
if( LAPACKE_dgb_nancheck( matrix_order, n, n, kl, ku, ab, ldab ) ) {
return -8;
}
if( LAPACKE_dgb_nancheck( matrix_order, n, n, kl, kl+ku, afb, ldafb ) ) {
return -10;
}
if( LAPACKE_dge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
return -15;
}
if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
if( LAPACKE_d_nancheck( n, c, 1 ) ) {
return -14;
}
}
if( nparams>0 ) {
if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
return -25;
}
}
if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
if( LAPACKE_d_nancheck( n, r, 1 ) ) {
return -13;
}
}
if( LAPACKE_dge_nancheck( matrix_order, n, nrhs, x, ldx ) ) {
return -17;
}
#endif
/* Allocate memory for working array(s) */
iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
if( iwork == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_0;
}
work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
if( work == NULL ) {
info = LAPACK_WORK_MEMORY_ERROR;
goto exit_level_1;
}
/* Call middle-level interface */
info = LAPACKE_dgbrfsx_work( matrix_order, trans, equed, n, kl, ku, nrhs,
ab, ldab, afb, ldafb, ipiv, r, c, b, ldb, x,
ldx, rcond, berr, n_err_bnds, err_bnds_norm,
err_bnds_comp, nparams, params, 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_dgbrfsx", info );
}
return info;
}
lapack_int LAPACKE_dlascl( int matrix_layout, char type, lapack_int kl,
lapack_int ku, double cfrom, double cto,
lapack_int m, lapack_int n, double* a,
lapack_int lda )
{
if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dlascl", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* Optionally check input matrices for NaNs */
switch (type) {
case 'G':
if( LAPACKE_dge_nancheck( matrix_layout, m, n, a, lda ) ) {
return -9;
}
break;
case 'L':
// TYPE = 'L' - lower triangle of general matrix
if( matrix_layout == LAPACK_COL_MAJOR &&
LAPACKE_dgb_nancheck( matrix_layout, m, n, m-1, 0, a, lda+1 ) ) {
return -9;
}
if( matrix_layout == LAPACK_ROW_MAJOR &&
LAPACKE_dgb_nancheck( LAPACK_COL_MAJOR, n, m, 0, m-1, a-m+1, lda+1 ) ) {
return -9;
}
break;
case 'U':
// TYPE = 'U' - upper triangle of general matrix
if( matrix_layout == LAPACK_COL_MAJOR &&
LAPACKE_dgb_nancheck( matrix_layout, m, n, 0, n-1, a-n+1, lda+1 ) ) {
return -9;
}
if( matrix_layout == LAPACK_ROW_MAJOR &&
LAPACKE_dgb_nancheck( LAPACK_COL_MAJOR, n, m, n-1, 0, a, lda+1 ) ) {
return -9;
}
break;
case 'H':
// TYPE = 'H' - part of upper Hessenberg matrix in general matrix
if( matrix_layout == LAPACK_COL_MAJOR &&
LAPACKE_dgb_nancheck( matrix_layout, m, n, 1, n-1, a-n+1, lda+1 ) ) {
return -9;
}
if( matrix_layout == LAPACK_ROW_MAJOR &&
LAPACKE_dgb_nancheck( LAPACK_COL_MAJOR, n, m, n-1, 1, a-1, lda+1 ) ) {
return -9;
}
case 'B':
// TYPE = 'B' - lower part of symmetric band matrix (assume m==n)
if( LAPACKE_dsb_nancheck( matrix_layout, 'L', n, kl, a, lda ) ) {
return -9;
}
break;
case 'Q':
// TYPE = 'Q' - upper part of symmetric band matrix (assume m==n)
if( LAPACKE_dsb_nancheck( matrix_layout, 'U', n, ku, a, lda ) ) {
return -9;
}
break;
case 'Z':
// TYPE = 'Z' - band matrix laid out for ?GBTRF
if( matrix_layout == LAPACK_COL_MAJOR &&
LAPACKE_dgb_nancheck( matrix_layout, m, n, kl, ku, a+kl, lda ) ) {
return -9;
}
if( matrix_layout == LAPACK_ROW_MAJOR &&
LAPACKE_dgb_nancheck( matrix_layout, m, n, kl, ku, a+lda*kl, lda ) ) {
return -9;
}
break;
}
#endif
return LAPACKE_dlascl_work( matrix_layout, type, kl, ku, cfrom, cto, m, n, a, lda );
}
