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| 2 | /*============================================================================
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| 3 |
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| 4 | This C header file is part of TestFloat, Release 3e, a package of programs for
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| 5 | testing the correctness of floating-point arithmetic complying with the IEEE
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| 6 | Standard for Floating-Point, by John R. Hauser.
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| 7 |
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| 8 | Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
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| 9 | California. All rights reserved.
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| 10 |
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| 11 | Redistribution and use in source and binary forms, with or without
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| 12 | modification, are permitted provided that the following conditions are met:
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| 13 |
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| 14 | 1. Redistributions of source code must retain the above copyright notice,
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| 15 | this list of conditions, and the following disclaimer.
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| 16 |
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| 17 | 2. Redistributions in binary form must reproduce the above copyright notice,
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| 18 | this list of conditions, and the following disclaimer in the documentation
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| 19 | and/or other materials provided with the distribution.
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| 20 |
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| 21 | 3. Neither the name of the University nor the names of its contributors may
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| 22 | be used to endorse or promote products derived from this software without
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| 23 | specific prior written permission.
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| 24 |
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| 25 | THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
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| 26 | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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| 27 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
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| 28 | DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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| 29 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 30 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 31 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 32 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 33 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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| 34 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 35 |
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| 36 | =============================================================================*/
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| 37 |
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| 38 | #ifndef uint128_h
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| 39 | #define uint128_h 1
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| 40 |
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| 41 | #include <stdbool.h>
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| 42 | #include <stdint.h>
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| 43 |
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| 44 | #ifdef LITTLEENDIAN
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| 45 | struct uint128 { uint64_t v0, v64; };
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| 46 | #else
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| 47 | struct uint128 { uint64_t v64, v0; };
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| 48 | #endif
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| 49 |
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| 50 | #ifdef INLINE
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| 51 |
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| 52 | INLINE bool eq128( struct uint128 a, struct uint128 b )
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| 53 | { return (a.v64 == b.v64) && (a.v0 == b.v0); }
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| 54 |
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| 55 | INLINE bool le128( struct uint128 a, struct uint128 b )
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| 56 | { return (a.v64 < b.v64) || ((a.v64 == b.v64) && (a.v0 <= b.v0)); }
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| 57 |
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| 58 | INLINE bool lt128( struct uint128 a, struct uint128 b )
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| 59 | { return (a.v64 < b.v64) || ((a.v64 == b.v64) && (a.v0 < b.v0)); }
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| 60 |
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| 61 | #else
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| 62 |
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| 63 | bool eq128( struct uint128, struct uint128 );
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| 64 | bool le128( struct uint128, struct uint128 );
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| 65 | bool lt128( struct uint128, struct uint128 );
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| 66 |
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| 67 | #endif
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| 68 |
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| 69 | struct uint128 shortShiftLeft128( struct uint128, int );
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| 70 | struct uint128 shortShiftRight128( struct uint128, int );
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| 71 | struct uint128 shortShiftRightJam128( struct uint128, int );
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| 72 | struct uint128 neg128( struct uint128 );
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| 73 | struct uint128 add128( struct uint128, struct uint128 );
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| 74 |
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| 75 | #endif
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| 76 |
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