91496ea9f8
Older GCC doesn't get named initializations of anonymous structs right, that is members are not initializable in the containing structure through name however old style initializations are working fine. The issue exists with gcc up to 4.5.x. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/* ieee754 floating point arithmetic
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* single and double precision
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*
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* BUGS
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* not much dp done
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* doesn't generate IEEE754_INEXACT
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*
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*/
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/*
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* MIPS floating point support
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* Copyright (C) 1994-2000 Algorithmics Ltd.
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*
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* This program is free software; you can distribute it and/or modify it
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* under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <linux/compiler.h>
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#include "ieee754.h"
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#include "ieee754sp.h"
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#include "ieee754dp.h"
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/*
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* Special constants
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*/
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/*
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* Older GCC requires the inner braces for initialization of union ieee754dp's
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* anonymous struct member. Without an error will result.
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*/
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#define DPCNST(s, b, m) \
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{ \
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{ \
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.sign = (s), \
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.bexp = (b) + DP_EBIAS, \
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.mant = (m) \
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} \
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}
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const union ieee754dp __ieee754dp_spcvals[] = {
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DPCNST(0, DP_EMIN - 1, 0x0000000000000ULL), /* + zero */
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DPCNST(1, DP_EMIN - 1, 0x0000000000000ULL), /* - zero */
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DPCNST(0, 0, 0x0000000000000ULL), /* + 1.0 */
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DPCNST(1, 0, 0x0000000000000ULL), /* - 1.0 */
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DPCNST(0, 3, 0x4000000000000ULL), /* + 10.0 */
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DPCNST(1, 3, 0x4000000000000ULL), /* - 10.0 */
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DPCNST(0, DP_EMAX + 1, 0x0000000000000ULL), /* + infinity */
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DPCNST(1, DP_EMAX + 1, 0x0000000000000ULL), /* - infinity */
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DPCNST(0, DP_EMAX + 1, 0x7FFFFFFFFFFFFULL), /* + indef quiet Nan */
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DPCNST(0, DP_EMAX, 0xFFFFFFFFFFFFFULL), /* + max */
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DPCNST(1, DP_EMAX, 0xFFFFFFFFFFFFFULL), /* - max */
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DPCNST(0, DP_EMIN, 0x0000000000000ULL), /* + min normal */
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DPCNST(1, DP_EMIN, 0x0000000000000ULL), /* - min normal */
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DPCNST(0, DP_EMIN - 1, 0x0000000000001ULL), /* + min denormal */
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DPCNST(1, DP_EMIN - 1, 0x0000000000001ULL), /* - min denormal */
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DPCNST(0, 31, 0x0000000000000ULL), /* + 1.0e31 */
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DPCNST(0, 63, 0x0000000000000ULL), /* + 1.0e63 */
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};
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/*
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* Older GCC requires the inner braces for initialization of union ieee754sp's
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* anonymous struct member. Without an error will result.
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*/
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#define SPCNST(s, b, m) \
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{ \
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{ \
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.sign = (s), \
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.bexp = (b) + SP_EBIAS, \
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.mant = (m) \
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} \
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}
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const union ieee754sp __ieee754sp_spcvals[] = {
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SPCNST(0, SP_EMIN - 1, 0x000000), /* + zero */
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SPCNST(1, SP_EMIN - 1, 0x000000), /* - zero */
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SPCNST(0, 0, 0x000000), /* + 1.0 */
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SPCNST(1, 0, 0x000000), /* - 1.0 */
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SPCNST(0, 3, 0x200000), /* + 10.0 */
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SPCNST(1, 3, 0x200000), /* - 10.0 */
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SPCNST(0, SP_EMAX + 1, 0x000000), /* + infinity */
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SPCNST(1, SP_EMAX + 1, 0x000000), /* - infinity */
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SPCNST(0, SP_EMAX + 1, 0x3FFFFF), /* + indef quiet Nan */
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SPCNST(0, SP_EMAX, 0x7FFFFF), /* + max normal */
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SPCNST(1, SP_EMAX, 0x7FFFFF), /* - max normal */
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SPCNST(0, SP_EMIN, 0x000000), /* + min normal */
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SPCNST(1, SP_EMIN, 0x000000), /* - min normal */
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SPCNST(0, SP_EMIN - 1, 0x000001), /* + min denormal */
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SPCNST(1, SP_EMIN - 1, 0x000001), /* - min denormal */
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SPCNST(0, 31, 0x000000), /* + 1.0e31 */
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SPCNST(0, 63, 0x000000), /* + 1.0e63 */
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};
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