| 1 | /**************************************************************************
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| 2 | *
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| 3 | * longlong.h -- Use of GCC's long long integer types
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| 4 | * Copyright (C) 1999 Tim A.H. Bell
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or modify
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| 7 | * it under the terms of the GNU General Public License as published by
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| 8 | * the Free Software Foundation; either version 2 of the License, or
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| 9 | * (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, write to the Free Software
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| 18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 19 | *
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| 20 | **************************************************************************/
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| 21 |
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| 22 | #ifndef H_LONGLONG
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| 23 | #define H_LONGLONG
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| 24 |
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| 25 | #ifndef __WIN32__
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| 26 | #include "config.h"
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| 27 | #endif
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| 28 |
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| 29 | /*
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| 30 | Use GCC's "long long" integer types for certain variables, to avoid
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| 31 | overflowing 32 bit integers.
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| 32 |
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| 33 | Other files affected:
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| 34 |
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| 35 | lib:
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| 36 | bitio_random.c
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| 37 | bitio_random.h
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| 38 |
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| 39 | src/text:
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| 40 | ivf.pass1.c
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| 41 | ivf.pass2.c
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| 42 | build.h
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| 43 | mg_passes.c
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| 44 | text.h
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| 45 | mgstat.c
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| 46 | */
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| 47 |
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| 48 | /*#define TESTING_OVERFLOW*/
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| 49 |
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| 50 | #ifdef TESTING_OVERFLOW
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| 51 |
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| 52 | /* Test the overflow detection by using tiny (16-bit) types */
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| 53 | typedef unsigned short int mg_ullong;
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| 54 | typedef short int mg_llong;
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| 55 |
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| 56 | #define ULL_FS "u"
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| 57 | #define LL_FS "d"
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| 58 |
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| 59 | #elif defined __GNUC__ && ! defined DISABLE_LONG_LONG
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| 60 |
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| 61 | /* We're using GCC, so it's okay to use "long long" (64-bit) types */
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| 62 | #define USE_LONG_LONG
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| 63 |
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| 64 | typedef unsigned long long int mg_ullong;
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| 65 | typedef long long int mg_llong;
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| 66 |
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| 67 | #define ULL_FS "llu"
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| 68 | #define LL_FS "lld"
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| 69 |
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| 70 | #else
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| 71 |
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| 72 | /* Not using GCC, so fall back on plain "long" (32-bit) types */
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| 73 | typedef unsigned long int mg_ullong;
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| 74 | typedef long int mg_llong;
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| 75 |
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| 76 | #define ULL_FS "lu"
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| 77 | #define LL_FS "ld"
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| 78 |
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| 79 | #endif /* __GNUC__ */
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| 80 |
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| 81 | #endif
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