1// Copyright 2009 The RE2 Authors.  All Rights Reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5#ifndef RE2_UTIL_UTIL_H__
6#define RE2_UTIL_UTIL_H__
7
8// C
9#include <stdio.h>
10#include <string.h>
11#include <stdint.h>
12#include <stddef.h>         // For size_t
13#include <assert.h>
14#include <stdarg.h>
15#include <sys/time.h>
16#include <time.h>
17
18// C++
19#include <vector>
20#include <string>
21#include <algorithm>
22#include <iosfwd>
23#include <map>
24#include <stack>
25#include <iostream>
26#include <utility>
27#include <set>
28
29// Use std names.
30using std::set;
31using std::pair;
32using std::vector;
33using std::string;
34using std::min;
35using std::max;
36using std::ostream;
37using std::map;
38using std::stack;
39using std::sort;
40using std::swap;
41using std::make_pair;
42
43#if defined(ANDROID)
44
45#include <unordered_set>
46using std::tr1::unordered_set;
47
48#elif defined(__GNUC__) && !defined(USE_CXX0X)
49
50#include <tr1/unordered_set>
51using std::tr1::unordered_set;
52
53#else
54
55#include <unordered_set>
56using std::unordered_set;
57
58#endif
59
60namespace re2 {
61
62typedef int8_t int8;
63typedef uint8_t uint8;
64typedef int16_t int16;
65typedef uint16_t uint16;
66typedef int32_t int32;
67typedef uint32_t uint32;
68typedef int64_t int64;
69typedef uint64_t uint64;
70
71typedef unsigned long ulong;
72typedef unsigned int uint;
73typedef unsigned short ushort;
74
75// COMPILE_ASSERT causes a compile error about msg if expr is not true.
76template<bool> struct CompileAssert {};
77#define COMPILE_ASSERT(expr, msg) \
78  typedef CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1]
79
80// DISALLOW_EVIL_CONSTRUCTORS disallows the copy and operator= functions.
81// It goes in the private: declarations in a class.
82#define DISALLOW_EVIL_CONSTRUCTORS(TypeName) \
83  TypeName(const TypeName&);                 \
84  void operator=(const TypeName&)
85
86#define arraysize(array) (sizeof(array)/sizeof((array)[0]))
87
88// Fake lock annotations.  For real ones, see
89// http://code.google.com/p/data-race-test/
90#define ANNOTATE_PUBLISH_MEMORY_RANGE(a, b)
91#define ANNOTATE_IGNORE_WRITES_BEGIN()
92#define ANNOTATE_IGNORE_WRITES_END()
93#define ANNOTATE_BENIGN_RACE(a, b)
94#define NO_THREAD_SAFETY_ANALYSIS
95#define ANNOTATE_HAPPENS_BEFORE(x)
96#define ANNOTATE_HAPPENS_AFTER(x)
97
98class StringPiece;
99
100string CEscape(const StringPiece& src);
101int CEscapeString(const char* src, int src_len, char* dest, int dest_len);
102
103extern string StringPrintf(const char* format, ...);
104extern void SStringPrintf(string* dst, const char* format, ...);
105extern void StringAppendF(string* dst, const char* format, ...);
106extern string PrefixSuccessor(const StringPiece& prefix);
107
108uint32 hashword(const uint32*, size_t, uint32);
109void hashword2(const uint32*, size_t, uint32*, uint32*);
110
111static inline uint32 Hash32StringWithSeed(const char* s, int len, uint32 seed) {
112  return hashword((uint32*)s, len/4, seed);
113}
114
115static inline uint64 Hash64StringWithSeed(const char* s, int len, uint32 seed) {
116  uint32 x, y;
117  x = seed;
118  y = 0;
119  hashword2((uint32*)s, len/4, &x, &y);
120  return ((uint64)x << 32) | y;
121}
122
123int RunningOnValgrind();
124
125}  // namespace re2
126
127#include "util/arena.h"
128#include "util/logging.h"
129#include "util/mutex.h"
130#include "util/utf.h"
131
132#endif // RE2_UTIL_UTIL_H__
133