Mercurial > fife-parpg

annotate ext/UnitTest++/src/MemoryOutStream.cpp @ 89:fa33cda75471

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* Reverting back to 2543 as requested by sleek
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sat, 19 Jul 2008 11:38:52 +0000
parents 0d325e9d5953
children
rev   line source
37
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1 #include "MemoryOutStream.h"
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2
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3 #ifndef UNITTEST_USE_CUSTOM_STREAMS
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4
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5
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6 namespace UnitTest {
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7
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8 char const* MemoryOutStream::GetText() const
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9 {
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10 m_text = this->str();
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11 return m_text.c_str();
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12 }
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13
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14
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15 }
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16
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17
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18 #else
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19
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20
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21 #include <cstring>
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22 #include <cstdio>
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23
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24 namespace UnitTest {
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25
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26 namespace {
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27
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28 template<typename ValueType>
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29 void FormatToStream(MemoryOutStream& stream, char const* format, ValueType const& value)
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30 {
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31 char txt[32];
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32 std::sprintf(txt, format, value);
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33 stream << txt;
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34 }
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35
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36 int RoundUpToMultipleOfPow2Number (int n, int pow2Number)
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37 {
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38 return (n + (pow2Number - 1)) & ~(pow2Number - 1);
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39 }
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40
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41 }
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42
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43
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44 MemoryOutStream::MemoryOutStream(int const size)
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45 : m_capacity (0)
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46 , m_buffer (0)
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47
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48 {
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49 GrowBuffer(size);
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50 }
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51
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52 MemoryOutStream::~MemoryOutStream()
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53 {
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54 delete [] m_buffer;
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55 }
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56
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57 char const* MemoryOutStream::GetText() const
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58 {
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59 return m_buffer;
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60 }
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61
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62 MemoryOutStream& MemoryOutStream::operator << (char const* txt)
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63 {
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64 int const bytesLeft = m_capacity - (int)std::strlen(m_buffer);
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65 int const bytesRequired = (int)std::strlen(txt) + 1;
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66
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67 if (bytesRequired > bytesLeft)
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68 {
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69 int const requiredCapacity = bytesRequired + m_capacity - bytesLeft;
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70 GrowBuffer(requiredCapacity);
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71 }
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72
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73 std::strcat(m_buffer, txt);
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74 return *this;
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75 }
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76
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77 MemoryOutStream& MemoryOutStream::operator << (int const n)
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78 {
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79 FormatToStream(*this, "%i", n);
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80 return *this;
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81 }
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82
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83 MemoryOutStream& MemoryOutStream::operator << (long const n)
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84 {
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85 FormatToStream(*this, "%li", n);
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86 return *this;
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87 }
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88
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89 MemoryOutStream& MemoryOutStream::operator << (unsigned long const n)
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90 {
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91 FormatToStream(*this, "%lu", n);
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92 return *this;
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93 }
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94
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95 MemoryOutStream& MemoryOutStream::operator << (float const f)
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96 {
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97 FormatToStream(*this, "%ff", f);
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98 return *this;
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99 }
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100
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101 MemoryOutStream& MemoryOutStream::operator << (void const* p)
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102 {
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103 FormatToStream(*this, "%p", p);
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104 return *this;
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105 }
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106
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107 MemoryOutStream& MemoryOutStream::operator << (unsigned int const s)
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108 {
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109 FormatToStream(*this, "%u", s);
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110 return *this;
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111 }
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112
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113 MemoryOutStream& MemoryOutStream::operator <<(double const d)
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114 {
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115 FormatToStream(*this, "%f", d);
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116 return *this;
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117 }
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118
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119 int MemoryOutStream::GetCapacity() const
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120 {
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121 return m_capacity;
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122 }
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123
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124
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125 void MemoryOutStream::GrowBuffer(int const desiredCapacity)
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126 {
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127 int const newCapacity = RoundUpToMultipleOfPow2Number(desiredCapacity, GROW_CHUNK_SIZE);
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128
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129 char* buffer = new char[newCapacity];
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130 if (m_buffer)
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131 std::strcpy(buffer, m_buffer);
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132 else
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133 std::strcpy(buffer, "");
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134
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135 delete [] m_buffer;
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136 m_buffer = buffer;
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137 m_capacity = newCapacity;
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138 }
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139
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140 }
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141
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142
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143 #endif