source: main/trunk/greenstone2/common-src/indexers/mg/lib/longlong.h@ 25147

Last change on this file since 25147 was 25147, checked in by kjdon, 12 years ago

merged 64_bit_Greenstone branch into trunk, rev 25139

  • Property svn:keywords set to Author Date Id Revision
File size: 2.0 KB
Line 
1/**************************************************************************
2 *
3 * longlong.h -- Use of GCC's long long integer types
4 * Copyright (C) 1999 Tim A.H. Bell
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 **************************************************************************/
21
22#ifndef H_LONGLONG
23#define H_LONGLONG
24
25#include "mglong.h"
26
27#ifndef __WIN32__
28#include "config.h"
29#endif
30
31/*
32 Use GCC's "long long" integer types for certain variables, to avoid
33 overflowing 32 bit integers.
34
35 Other files affected:
36
37 lib:
38 bitio_random.c
39 bitio_random.h
40
41 src/text:
42 ivf.pass1.c
43 ivf.pass2.c
44 build.h
45 mg_passes.c
46 text.h
47 mgstat.c
48*/
49
50/*#define TESTING_OVERFLOW*/
51
52#ifdef TESTING_OVERFLOW
53
54/* Test the overflow detection by using tiny (16-bit) types */
55typedef unsigned short int mg_ullong;
56typedef short int mg_llong;
57
58#define ULL_FS "u"
59#define LL_FS "d"
60
61#elif defined __GNUC__ && ! defined DISABLE_LONG_LONG
62
63/* We're using GCC, so it's okay to use "long long" (64-bit) types */
64#define USE_LONG_LONG
65
66typedef unsigned long long int mg_ullong;
67typedef long long int mg_llong;
68
69#define ULL_FS "llu"
70#define LL_FS "lld"
71
72#else
73
74/* Not using GCC, so fall back on plain "long" (32-bit) types */
75typedef uint32_t mg_ullong;
76typedef int32_t mg_llong;
77
78#define ULL_FS "u"
79#define LL_FS "d"
80
81#endif /* __GNUC__ */
82
83#endif
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