87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
/* Temporary library support for decimal floating point.
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Copyright (C) 2005, 2006 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA. */
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#include "config.h"
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#include "decContext.h"
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#include "decimal128.h"
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#include "decimal64.h"
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#include "decimal32.h"
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void __host_to_ieee_32 (_Decimal32, decimal32 *);
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void __host_to_ieee_64 (_Decimal64, decimal64 *);
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void __host_to_ieee_128 (_Decimal128, decimal128 *);
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extern int isinfd32 (_Decimal32);
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extern int isinfd64 (_Decimal64);
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extern int isinfd128 (_Decimal128);
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uint32_t __dec_byte_swap (uint32_t);
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int
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isinfd32 (_Decimal32 arg)
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{
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decNumber dn;
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decimal32 d32;
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__host_to_ieee_32 (arg, &d32);
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decimal32ToNumber (&d32, &dn);
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return (decNumberIsInfinite (&dn));
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}
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int
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isinfd64 (_Decimal64 arg)
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{
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decNumber dn;
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decimal64 d64;
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__host_to_ieee_64 (arg, &d64);
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decimal64ToNumber (&d64, &dn);
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return (decNumberIsInfinite (&dn));
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}
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int
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isinfd128 (_Decimal128 arg)
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{
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decNumber dn;
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decimal128 d128;
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__host_to_ieee_128 (arg, &d128);
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decimal128ToNumber (&d128, &dn);
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return (decNumberIsInfinite (&dn));
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}
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uint32_t
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__dec_byte_swap (uint32_t in)
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{
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uint32_t out = 0;
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unsigned char *p = (unsigned char *) &out;
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union {
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uint32_t i;
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unsigned char b[4];
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} u;
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u.i = in;
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p[0] = u.b[3];
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p[1] = u.b[2];
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p[2] = u.b[1];
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p[3] = u.b[0];
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return out;
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}
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