third_party/re2/util/util.h

   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 #ifndef WIN32
  16 #include <sys/time.h>
  17 #endif
  18 #include <time.h>
  19
  20 // C++
  21 #include <vector>
  22 #include <string>
  23 #include <algorithm>
  24 #include <iosfwd>
  25 #include <map>
  26 #include <stack>
  27 #include <iostream>
  28 #include <utility>
  29 #include <set>
  30
  31 #include "build/build_config.h"
  32 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
  33
  34 // Use std names.
  35 using std::set;
  36 using std::pair;
  37 using std::vector;
  38 using std::string;
  39 using std::min;
  40 using std::max;
  41 using std::ostream;
  42 using std::map;
  43 using std::stack;
  44 using std::sort;
  45 using std::swap;
  46 using std::make_pair;
  47
  48 #if defined(__GNUC__) && !defined(USE_CXX0X) && !defined(OS_ANDROID)
  49
  50 #include <tr1/unordered_set>
  51 using std::tr1::unordered_set;
  52
  53 #else
  54
  55 #include <unordered_set>
  56 #if defined(WIN32) || defined(OS_ANDROID)
  57 using std::tr1::unordered_set;
  58 #else
  59 using std::unordered_set;
  60 #endif
  61
  62 #endif
  63
  64 namespace re2 {
  65
  66 typedef int8_t int8;
  67 typedef uint8_t uint8;
  68 typedef int16_t int16;
  69 typedef uint16_t uint16;
  70 typedef int32_t int32;
  71 typedef uint32_t uint32;
  72 typedef int64_t int64;
  73 typedef uint64_t uint64;
  74
  75 typedef unsigned long ulong;
  76 typedef unsigned int uint;
  77 typedef unsigned short ushort;
  78
  79 // COMPILE_ASSERT causes a compile error about msg if expr is not true.
  80 template<bool> struct CompileAssert {};
  81 #define COMPILE_ASSERT(expr, msg) \
  82   typedef CompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1]
  83
  84 // DISALLOW_EVIL_CONSTRUCTORS disallows the copy and operator= functions.
  85 // It goes in the private: declarations in a class.
  86 #define DISALLOW_EVIL_CONSTRUCTORS(TypeName) \
  87   TypeName(const TypeName&);                 \
  88   void operator=(const TypeName&)
  89
  90 #define arraysize(array) (sizeof(array)/sizeof((array)[0]))
  91
  92 class StringPiece;
  93
  94 string CEscape(const StringPiece& src);
  95 int CEscapeString(const char* src, int src_len, char* dest, int dest_len);
  96
  97 extern string StringPrintf(const char* format, ...);
  98 extern void SStringPrintf(string* dst, const char* format, ...);
  99 extern void StringAppendF(string* dst, const char* format, ...);
 100 extern string PrefixSuccessor(const StringPiece& prefix);
 101
 102 uint32 hashword(const uint32*, size_t, uint32);
 103 void hashword2(const uint32*, size_t, uint32*, uint32*);
 104
 105 static inline uint32 Hash32StringWithSeed(const char* s, int len, uint32 seed) {
 106   return hashword((uint32*)s, len/4, seed);
 107 }
 108
 109 static inline uint64 Hash64StringWithSeed(const char* s, int len, uint32 seed) {
 110   uint32 x, y;
 111   x = seed;
 112   y = 0;
 113   hashword2((uint32*)s, len/4, &x, &y);
 114   return ((uint64)x << 32) | y;
 115 }
 116
 117 }  // namespace re2
 118
 119 #include "util/arena.h"
 120 #include "util/logging.h"
 121 #include "util/mutex.h"
 122 #include "util/utf.h"
 123
 124 #endif // RE2_UTIL_UTIL_H__