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lapacke_sgb_nancheck.c
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/*****************************************************************************
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Copyright (c) 2014, Intel Corp.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Intel Corporation nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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THE POSSIBILITY OF SUCH DAMAGE.
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******************************************************************************
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* Contents: Native C interface to LAPACK utility function
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* Author: Intel Corporation
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* Created in February, 2010
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*****************************************************************************/
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#include "
lapacke_utils.h
"
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/* Check a matrix for NaN entries. */
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lapack_logical
LAPACKE_sgb_nancheck
(
int
matrix_layout,
lapack_int
m,
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lapack_int
n,
lapack_int
kl,
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lapack_int
ku,
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const
float
*ab,
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lapack_int
ldab )
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{
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lapack_int
i, j;
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if
( ab == NULL )
return
(
lapack_logical
) 0;
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if
( matrix_layout ==
LAPACK_COL_MAJOR
) {
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for
( j = 0; j < n; j++ ) {
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for
( i =
MAX
( ku-j, 0 ); i <
MIN
( m+ku-j, kl+ku+1 );
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i++ ) {
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if
(
LAPACK_SISNAN
( ab[i+(
size_t
)j*ldab] ) )
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return
(
lapack_logical
) 1;
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}
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}
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}
else
if
( matrix_layout ==
LAPACK_ROW_MAJOR
) {
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for
( j = 0; j < n; j++ ) {
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for
( i =
MAX
( ku-j, 0 ); i <
MIN
( m+ku-j, kl+ku+1 ); i++ ) {
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if
(
LAPACK_SISNAN
( ab[(
size_t
)i*ldab+j] ) )
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return
(
lapack_logical
) 1;
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}
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}
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}
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return
(
lapack_logical
) 0;
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}
lapack_logical
#define lapack_logical
Definition:
lapacke.h:51
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition:
lapacke.h:119
LAPACKE_sgb_nancheck
lapack_logical LAPACKE_sgb_nancheck(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const float *ab, lapack_int ldab)
Definition:
lapacke_sgb_nancheck.c:37
lapacke_utils.h
MIN
#define MIN(x, y)
Definition:
lapacke_utils.h:50
MAX
#define MAX(x, y)
Definition:
lapacke_utils.h:47
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition:
lapacke.h:120
lapack_int
#define lapack_int
Definition:
lapacke.h:47
LAPACK_SISNAN
#define LAPACK_SISNAN(x)
Definition:
lapacke_utils.h:286
LAPACKE
utils
lapacke_sgb_nancheck.c
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