56 строки
1.4 KiB
C
56 строки
1.4 KiB
C
/*
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* floor, trunc, ceil
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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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* ########################################################################
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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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* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*
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* ########################################################################
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*/
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#include "ieee754.h"
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ieee754dp ieee754dp_floor(ieee754dp x)
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{
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ieee754dp i;
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if (ieee754dp_lt(ieee754dp_modf(x, &i), ieee754dp_zero(0)))
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return ieee754dp_sub(i, ieee754dp_one(0));
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else
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return i;
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}
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ieee754dp ieee754dp_ceil(ieee754dp x)
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{
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ieee754dp i;
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if (ieee754dp_gt(ieee754dp_modf(x, &i), ieee754dp_zero(0)))
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return ieee754dp_add(i, ieee754dp_one(0));
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else
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return i;
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}
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ieee754dp ieee754dp_trunc(ieee754dp x)
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{
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ieee754dp i;
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(void) ieee754dp_modf(x, &i);
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return i;
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}
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