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77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
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/*============================================================================
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This C header file is part of TestFloat, Release 3e, a package of programs for
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testing the correctness of floating-point arithmetic complying with the IEEE
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Standard for Floating-Point, by John R. Hauser.
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Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
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California. 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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1. 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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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions, and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the University nor the names of its contributors may
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be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
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DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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=============================================================================*/
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#ifndef uint128_h
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#define uint128_h 1
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#include <stdbool.h>
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#include <stdint.h>
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#ifdef LITTLEENDIAN
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struct uint128 { uint64_t v0, v64; };
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#else
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struct uint128 { uint64_t v64, v0; };
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#endif
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#ifdef INLINE
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INLINE bool eq128( struct uint128 a, struct uint128 b )
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{ return (a.v64 == b.v64) && (a.v0 == b.v0); }
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INLINE bool le128( struct uint128 a, struct uint128 b )
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{ return (a.v64 < b.v64) || ((a.v64 == b.v64) && (a.v0 <= b.v0)); }
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INLINE bool lt128( struct uint128 a, struct uint128 b )
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{ return (a.v64 < b.v64) || ((a.v64 == b.v64) && (a.v0 < b.v0)); }
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#else
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bool eq128( struct uint128, struct uint128 );
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bool le128( struct uint128, struct uint128 );
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bool lt128( struct uint128, struct uint128 );
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#endif
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struct uint128 shortShiftLeft128( struct uint128, int );
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struct uint128 shortShiftRight128( struct uint128, int );
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struct uint128 shortShiftRightJam128( struct uint128, int );
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struct uint128 neg128( struct uint128 );
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struct uint128 add128( struct uint128, struct uint128 );
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#endif
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