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1 // -*- C++ -*-
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2 //===--------------------------- istream ----------------------------------===//
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3 //
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4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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5 // See https://llvm.org/LICENSE.txt for license information.
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6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #ifndef _LIBCPP_ISTREAM
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11 #define _LIBCPP_ISTREAM
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12
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13 /*
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14 istream synopsis
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15
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16 template <class charT, class traits = char_traits<charT> >
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17 class basic_istream
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18 : virtual public basic_ios<charT,traits>
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19 {
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20 public:
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21 // types (inherited from basic_ios (27.5.4)):
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22 typedef charT char_type;
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23 typedef traits traits_type;
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24 typedef typename traits_type::int_type int_type;
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25 typedef typename traits_type::pos_type pos_type;
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26 typedef typename traits_type::off_type off_type;
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27
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28 // 27.7.1.1.1 Constructor/destructor:
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29 explicit basic_istream(basic_streambuf<char_type, traits_type>* sb);
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30 basic_istream(basic_istream&& rhs);
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31 virtual ~basic_istream();
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32
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33 // 27.7.1.1.2 Assign/swap:
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34 basic_istream& operator=(basic_istream&& rhs);
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35 void swap(basic_istream& rhs);
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36
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37 // 27.7.1.1.3 Prefix/suffix:
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38 class sentry;
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39
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40 // 27.7.1.2 Formatted input:
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41 basic_istream& operator>>(basic_istream& (*pf)(basic_istream&));
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42 basic_istream& operator>>(basic_ios<char_type, traits_type>&
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43 (*pf)(basic_ios<char_type, traits_type>&));
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44 basic_istream& operator>>(ios_base& (*pf)(ios_base&));
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45 basic_istream& operator>>(basic_streambuf<char_type, traits_type>* sb);
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46 basic_istream& operator>>(bool& n);
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47 basic_istream& operator>>(short& n);
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48 basic_istream& operator>>(unsigned short& n);
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49 basic_istream& operator>>(int& n);
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50 basic_istream& operator>>(unsigned int& n);
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51 basic_istream& operator>>(long& n);
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52 basic_istream& operator>>(unsigned long& n);
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53 basic_istream& operator>>(long long& n);
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54 basic_istream& operator>>(unsigned long long& n);
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55 basic_istream& operator>>(float& f);
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56 basic_istream& operator>>(double& f);
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57 basic_istream& operator>>(long double& f);
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58 basic_istream& operator>>(void*& p);
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59
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60 // 27.7.1.3 Unformatted input:
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61 streamsize gcount() const;
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62 int_type get();
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63 basic_istream& get(char_type& c);
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64 basic_istream& get(char_type* s, streamsize n);
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65 basic_istream& get(char_type* s, streamsize n, char_type delim);
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66 basic_istream& get(basic_streambuf<char_type,traits_type>& sb);
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67 basic_istream& get(basic_streambuf<char_type,traits_type>& sb, char_type delim);
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68
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69 basic_istream& getline(char_type* s, streamsize n);
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70 basic_istream& getline(char_type* s, streamsize n, char_type delim);
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71
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72 basic_istream& ignore(streamsize n = 1, int_type delim = traits_type::eof());
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73 int_type peek();
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74 basic_istream& read (char_type* s, streamsize n);
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75 streamsize readsome(char_type* s, streamsize n);
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76
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77 basic_istream& putback(char_type c);
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78 basic_istream& unget();
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79 int sync();
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80
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81 pos_type tellg();
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82 basic_istream& seekg(pos_type);
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83 basic_istream& seekg(off_type, ios_base::seekdir);
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84 protected:
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85 basic_istream(const basic_istream& rhs) = delete;
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86 basic_istream(basic_istream&& rhs);
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87 // 27.7.2.1.2 Assign/swap:
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88 basic_istream& operator=(const basic_istream& rhs) = delete;
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89 basic_istream& operator=(basic_istream&& rhs);
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90 void swap(basic_istream& rhs);
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91 };
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92
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93 // 27.7.1.2.3 character extraction templates:
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94 template<class charT, class traits>
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95 basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&, charT&);
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96
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97 template<class traits>
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98 basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, unsigned char&);
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99
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100 template<class traits>
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101 basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, signed char&);
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102
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103 template<class charT, class traits>
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104 basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&, charT*);
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105
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106 template<class traits>
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107 basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, unsigned char*);
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108
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109 template<class traits>
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110 basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, signed char*);
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111
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112 template <class charT, class traits>
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113 void
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114 swap(basic_istream<charT, traits>& x, basic_istream<charT, traits>& y);
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115
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116 typedef basic_istream<char> istream;
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117 typedef basic_istream<wchar_t> wistream;
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118
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119 template <class charT, class traits = char_traits<charT> >
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120 class basic_iostream :
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121 public basic_istream<charT,traits>,
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122 public basic_ostream<charT,traits>
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123 {
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124 public:
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125 // types:
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126 typedef charT char_type;
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127 typedef traits traits_type;
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128 typedef typename traits_type::int_type int_type;
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129 typedef typename traits_type::pos_type pos_type;
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130 typedef typename traits_type::off_type off_type;
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131
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132 // constructor/destructor
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133 explicit basic_iostream(basic_streambuf<char_type, traits_type>* sb);
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134 basic_iostream(basic_iostream&& rhs);
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135 virtual ~basic_iostream();
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136
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137 // assign/swap
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138 basic_iostream& operator=(basic_iostream&& rhs);
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139 void swap(basic_iostream& rhs);
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140 };
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141
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142 template <class charT, class traits>
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143 void
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144 swap(basic_iostream<charT, traits>& x, basic_iostream<charT, traits>& y);
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145
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146 typedef basic_iostream<char> iostream;
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147 typedef basic_iostream<wchar_t> wiostream;
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148
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149 template <class charT, class traits>
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150 basic_istream<charT,traits>&
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151 ws(basic_istream<charT,traits>& is);
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152
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221
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153 // rvalue stream extraction
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154 template <class Stream, class T>
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155 Stream&& operator>>(Stream&& is, T&& x);
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150
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156
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157 } // std
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158
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159 */
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160
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161 #include <__config>
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221
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162 #include <ostream>
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150
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163 #include <version>
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164
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165 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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166 #pragma GCC system_header
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167 #endif
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168
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169 _LIBCPP_PUSH_MACROS
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170 #include <__undef_macros>
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171
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172
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173 _LIBCPP_BEGIN_NAMESPACE_STD
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174
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175 template <class _CharT, class _Traits>
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176 class _LIBCPP_TEMPLATE_VIS basic_istream
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177 : virtual public basic_ios<_CharT, _Traits>
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178 {
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179 streamsize __gc_;
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180 public:
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181 // types (inherited from basic_ios (27.5.4)):
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182 typedef _CharT char_type;
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183 typedef _Traits traits_type;
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184 typedef typename traits_type::int_type int_type;
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185 typedef typename traits_type::pos_type pos_type;
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186 typedef typename traits_type::off_type off_type;
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187
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188 // 27.7.1.1.1 Constructor/destructor:
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189 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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190 explicit basic_istream(basic_streambuf<char_type, traits_type>* __sb) : __gc_(0)
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191 { this->init(__sb); }
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192 virtual ~basic_istream();
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193 protected:
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194 #ifndef _LIBCPP_CXX03_LANG
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195 inline _LIBCPP_INLINE_VISIBILITY
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196 basic_istream(basic_istream&& __rhs);
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197
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198 // 27.7.1.1.2 Assign/swap:
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199 inline _LIBCPP_INLINE_VISIBILITY
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200 basic_istream& operator=(basic_istream&& __rhs);
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201 #endif
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202
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203 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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204 void swap(basic_istream& __rhs) {
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205 _VSTD::swap(__gc_, __rhs.__gc_);
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206 basic_ios<char_type, traits_type>::swap(__rhs);
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207 }
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208
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209 #ifndef _LIBCPP_CXX03_LANG
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210 basic_istream (const basic_istream& __rhs) = delete;
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211 basic_istream& operator=(const basic_istream& __rhs) = delete;
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212 #endif
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213 public:
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214
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215 // 27.7.1.1.3 Prefix/suffix:
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216 class _LIBCPP_TEMPLATE_VIS sentry;
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217
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218 // 27.7.1.2 Formatted input:
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219 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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220 basic_istream& operator>>(basic_istream& (*__pf)(basic_istream&))
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221 { return __pf(*this); }
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222
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223 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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224 basic_istream& operator>>(basic_ios<char_type, traits_type>&
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225 (*__pf)(basic_ios<char_type, traits_type>&))
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226 { __pf(*this); return *this; }
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227
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228 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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229 basic_istream& operator>>(ios_base& (*__pf)(ios_base&))
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230 { __pf(*this); return *this; }
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231
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232 basic_istream& operator>>(basic_streambuf<char_type, traits_type>* __sb);
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233 basic_istream& operator>>(bool& __n);
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234 basic_istream& operator>>(short& __n);
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235 basic_istream& operator>>(unsigned short& __n);
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236 basic_istream& operator>>(int& __n);
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237 basic_istream& operator>>(unsigned int& __n);
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238 basic_istream& operator>>(long& __n);
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239 basic_istream& operator>>(unsigned long& __n);
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240 basic_istream& operator>>(long long& __n);
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241 basic_istream& operator>>(unsigned long long& __n);
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242 basic_istream& operator>>(float& __f);
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243 basic_istream& operator>>(double& __f);
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244 basic_istream& operator>>(long double& __f);
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245 basic_istream& operator>>(void*& __p);
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246
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247 // 27.7.1.3 Unformatted input:
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248 _LIBCPP_INLINE_VISIBILITY
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249 streamsize gcount() const {return __gc_;}
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250 int_type get();
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251
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252 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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253 basic_istream& get(char_type& __c) {
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254 int_type __ch = get();
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255 if (__ch != traits_type::eof())
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256 __c = traits_type::to_char_type(__ch);
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257 return *this;
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258 }
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259
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260 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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261 basic_istream& get(char_type* __s, streamsize __n)
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262 { return get(__s, __n, this->widen('\n')); }
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263
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264 basic_istream& get(char_type* __s, streamsize __n, char_type __dlm);
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265
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266 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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267 basic_istream& get(basic_streambuf<char_type, traits_type>& __sb)
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268 { return get(__sb, this->widen('\n')); }
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269
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270 basic_istream& get(basic_streambuf<char_type, traits_type>& __sb, char_type __dlm);
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271
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272 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
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273 basic_istream& getline(char_type* __s, streamsize __n)
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274 { return getline(__s, __n, this->widen('\n')); }
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275
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276 basic_istream& getline(char_type* __s, streamsize __n, char_type __dlm);
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277
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278 basic_istream& ignore(streamsize __n = 1, int_type __dlm = traits_type::eof());
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279 int_type peek();
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280 basic_istream& read (char_type* __s, streamsize __n);
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281 streamsize readsome(char_type* __s, streamsize __n);
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282
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283 basic_istream& putback(char_type __c);
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284 basic_istream& unget();
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285 int sync();
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286
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287 pos_type tellg();
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288 basic_istream& seekg(pos_type __pos);
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289 basic_istream& seekg(off_type __off, ios_base::seekdir __dir);
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290 };
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291
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292 template <class _CharT, class _Traits>
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293 class _LIBCPP_TEMPLATE_VIS basic_istream<_CharT, _Traits>::sentry
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294 {
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295 bool __ok_;
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296
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297 sentry(const sentry&); // = delete;
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298 sentry& operator=(const sentry&); // = delete;
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299
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300 public:
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301 explicit sentry(basic_istream<_CharT, _Traits>& __is, bool __noskipws = false);
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302 // ~sentry() = default;
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303
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304 _LIBCPP_INLINE_VISIBILITY
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305 _LIBCPP_EXPLICIT
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306 operator bool() const {return __ok_;}
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307 };
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308
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309 template <class _CharT, class _Traits>
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310 basic_istream<_CharT, _Traits>::sentry::sentry(basic_istream<_CharT, _Traits>& __is,
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311 bool __noskipws)
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312 : __ok_(false)
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313 {
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314 if (__is.good())
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315 {
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316 if (__is.tie())
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317 __is.tie()->flush();
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318 if (!__noskipws && (__is.flags() & ios_base::skipws))
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319 {
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320 typedef istreambuf_iterator<_CharT, _Traits> _Ip;
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321 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
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322 _Ip __i(__is);
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323 _Ip __eof;
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324 for (; __i != __eof; ++__i)
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325 if (!__ct.is(__ct.space, *__i))
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326 break;
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327 if (__i == __eof)
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328 __is.setstate(ios_base::failbit | ios_base::eofbit);
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329 }
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330 __ok_ = __is.good();
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331 }
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332 else
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333 __is.setstate(ios_base::failbit);
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334 }
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335
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336 #ifndef _LIBCPP_CXX03_LANG
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337
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338 template <class _CharT, class _Traits>
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339 basic_istream<_CharT, _Traits>::basic_istream(basic_istream&& __rhs)
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340 : __gc_(__rhs.__gc_)
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341 {
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342 __rhs.__gc_ = 0;
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343 this->move(__rhs);
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344 }
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345
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346 template <class _CharT, class _Traits>
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347 basic_istream<_CharT, _Traits>&
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348 basic_istream<_CharT, _Traits>::operator=(basic_istream&& __rhs)
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349 {
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350 swap(__rhs);
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351 return *this;
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352 }
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353
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221
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354 #endif // _LIBCPP_CXX03_LANG
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150
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355
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356 template <class _CharT, class _Traits>
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357 basic_istream<_CharT, _Traits>::~basic_istream()
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358 {
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359 }
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360
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361 template <class _Tp, class _CharT, class _Traits>
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362 _LIBCPP_INLINE_VISIBILITY
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363 basic_istream<_CharT, _Traits>&
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364 __input_arithmetic(basic_istream<_CharT, _Traits>& __is, _Tp& __n) {
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365 ios_base::iostate __state = ios_base::goodbit;
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366 typename basic_istream<_CharT, _Traits>::sentry __s(__is);
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367 if (__s)
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368 {
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369 #ifndef _LIBCPP_NO_EXCEPTIONS
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370 try
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371 {
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221
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372 #endif // _LIBCPP_NO_EXCEPTIONS
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150
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373 typedef istreambuf_iterator<_CharT, _Traits> _Ip;
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374 typedef num_get<_CharT, _Ip> _Fp;
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|
|
375 use_facet<_Fp>(__is.getloc()).get(_Ip(__is), _Ip(), __is, __state, __n);
|
|
|
376 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
377 }
|
|
|
378 catch (...)
|
|
|
379 {
|
|
|
380 __state |= ios_base::badbit;
|
|
|
381 __is.__setstate_nothrow(__state);
|
|
|
382 if (__is.exceptions() & ios_base::badbit)
|
|
|
383 {
|
|
|
384 throw;
|
|
|
385 }
|
|
|
386 }
|
|
|
387 #endif
|
|
|
388 __is.setstate(__state);
|
|
|
389 }
|
|
|
390 return __is;
|
|
|
391 }
|
|
|
392
|
|
|
393 template <class _CharT, class _Traits>
|
|
|
394 basic_istream<_CharT, _Traits>&
|
|
|
395 basic_istream<_CharT, _Traits>::operator>>(unsigned short& __n)
|
|
|
396 {
|
|
|
397 return _VSTD::__input_arithmetic<unsigned short>(*this, __n);
|
|
|
398 }
|
|
|
399
|
|
|
400 template <class _CharT, class _Traits>
|
|
|
401 basic_istream<_CharT, _Traits>&
|
|
|
402 basic_istream<_CharT, _Traits>::operator>>(unsigned int& __n)
|
|
|
403 {
|
|
|
404 return _VSTD::__input_arithmetic<unsigned int>(*this, __n);
|
|
|
405 }
|
|
|
406
|
|
|
407 template <class _CharT, class _Traits>
|
|
|
408 basic_istream<_CharT, _Traits>&
|
|
|
409 basic_istream<_CharT, _Traits>::operator>>(long& __n)
|
|
|
410 {
|
|
|
411 return _VSTD::__input_arithmetic<long>(*this, __n);
|
|
|
412 }
|
|
|
413
|
|
|
414 template <class _CharT, class _Traits>
|
|
|
415 basic_istream<_CharT, _Traits>&
|
|
|
416 basic_istream<_CharT, _Traits>::operator>>(unsigned long& __n)
|
|
|
417 {
|
|
|
418 return _VSTD::__input_arithmetic<unsigned long>(*this, __n);
|
|
|
419 }
|
|
|
420
|
|
|
421 template <class _CharT, class _Traits>
|
|
|
422 basic_istream<_CharT, _Traits>&
|
|
|
423 basic_istream<_CharT, _Traits>::operator>>(long long& __n)
|
|
|
424 {
|
|
|
425 return _VSTD::__input_arithmetic<long long>(*this, __n);
|
|
|
426 }
|
|
|
427
|
|
|
428 template <class _CharT, class _Traits>
|
|
|
429 basic_istream<_CharT, _Traits>&
|
|
|
430 basic_istream<_CharT, _Traits>::operator>>(unsigned long long& __n)
|
|
|
431 {
|
|
|
432 return _VSTD::__input_arithmetic<unsigned long long>(*this, __n);
|
|
|
433 }
|
|
|
434
|
|
|
435 template <class _CharT, class _Traits>
|
|
|
436 basic_istream<_CharT, _Traits>&
|
|
|
437 basic_istream<_CharT, _Traits>::operator>>(float& __n)
|
|
|
438 {
|
|
|
439 return _VSTD::__input_arithmetic<float>(*this, __n);
|
|
|
440 }
|
|
|
441
|
|
|
442 template <class _CharT, class _Traits>
|
|
|
443 basic_istream<_CharT, _Traits>&
|
|
|
444 basic_istream<_CharT, _Traits>::operator>>(double& __n)
|
|
|
445 {
|
|
|
446 return _VSTD::__input_arithmetic<double>(*this, __n);
|
|
|
447 }
|
|
|
448
|
|
|
449 template <class _CharT, class _Traits>
|
|
|
450 basic_istream<_CharT, _Traits>&
|
|
|
451 basic_istream<_CharT, _Traits>::operator>>(long double& __n)
|
|
|
452 {
|
|
|
453 return _VSTD::__input_arithmetic<long double>(*this, __n);
|
|
|
454 }
|
|
|
455
|
|
|
456 template <class _CharT, class _Traits>
|
|
|
457 basic_istream<_CharT, _Traits>&
|
|
|
458 basic_istream<_CharT, _Traits>::operator>>(bool& __n)
|
|
|
459 {
|
|
|
460 return _VSTD::__input_arithmetic<bool>(*this, __n);
|
|
|
461 }
|
|
|
462
|
|
|
463 template <class _CharT, class _Traits>
|
|
|
464 basic_istream<_CharT, _Traits>&
|
|
|
465 basic_istream<_CharT, _Traits>::operator>>(void*& __n)
|
|
|
466 {
|
|
|
467 return _VSTD::__input_arithmetic<void*>(*this, __n);
|
|
|
468 }
|
|
|
469
|
|
|
470 template <class _Tp, class _CharT, class _Traits>
|
|
|
471 _LIBCPP_INLINE_VISIBILITY
|
|
|
472 basic_istream<_CharT, _Traits>&
|
|
|
473 __input_arithmetic_with_numeric_limits(basic_istream<_CharT, _Traits>& __is, _Tp& __n) {
|
|
|
474 ios_base::iostate __state = ios_base::goodbit;
|
|
|
475 typename basic_istream<_CharT, _Traits>::sentry __s(__is);
|
|
|
476 if (__s)
|
|
|
477 {
|
|
|
478 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
479 try
|
|
|
480 {
|
|
221
|
481 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
482 typedef istreambuf_iterator<_CharT, _Traits> _Ip;
|
|
|
483 typedef num_get<_CharT, _Ip> _Fp;
|
|
|
484 long __temp;
|
|
|
485 use_facet<_Fp>(__is.getloc()).get(_Ip(__is), _Ip(), __is, __state, __temp);
|
|
|
486 if (__temp < numeric_limits<_Tp>::min())
|
|
|
487 {
|
|
|
488 __state |= ios_base::failbit;
|
|
|
489 __n = numeric_limits<_Tp>::min();
|
|
|
490 }
|
|
|
491 else if (__temp > numeric_limits<_Tp>::max())
|
|
|
492 {
|
|
|
493 __state |= ios_base::failbit;
|
|
|
494 __n = numeric_limits<_Tp>::max();
|
|
|
495 }
|
|
|
496 else
|
|
|
497 {
|
|
|
498 __n = static_cast<_Tp>(__temp);
|
|
|
499 }
|
|
|
500 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
501 }
|
|
|
502 catch (...)
|
|
|
503 {
|
|
|
504 __state |= ios_base::badbit;
|
|
|
505 __is.__setstate_nothrow(__state);
|
|
|
506 if (__is.exceptions() & ios_base::badbit)
|
|
|
507 {
|
|
|
508 throw;
|
|
|
509 }
|
|
|
510 }
|
|
221
|
511 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
512 __is.setstate(__state);
|
|
|
513 }
|
|
|
514 return __is;
|
|
|
515 }
|
|
|
516
|
|
|
517 template <class _CharT, class _Traits>
|
|
|
518 basic_istream<_CharT, _Traits>&
|
|
|
519 basic_istream<_CharT, _Traits>::operator>>(short& __n)
|
|
|
520 {
|
|
|
521 return _VSTD::__input_arithmetic_with_numeric_limits<short>(*this, __n);
|
|
|
522 }
|
|
|
523
|
|
|
524 template <class _CharT, class _Traits>
|
|
|
525 basic_istream<_CharT, _Traits>&
|
|
|
526 basic_istream<_CharT, _Traits>::operator>>(int& __n)
|
|
|
527 {
|
|
|
528 return _VSTD::__input_arithmetic_with_numeric_limits<int>(*this, __n);
|
|
|
529 }
|
|
|
530
|
|
|
531 template<class _CharT, class _Traits>
|
|
|
532 _LIBCPP_INLINE_VISIBILITY
|
|
|
533 basic_istream<_CharT, _Traits>&
|
|
|
534 __input_c_string(basic_istream<_CharT, _Traits>& __is, _CharT* __p, size_t __n)
|
|
|
535 {
|
|
|
536 ios_base::iostate __state = ios_base::goodbit;
|
|
|
537 typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
|
|
|
538 if (__sen)
|
|
|
539 {
|
|
|
540 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
541 try
|
|
|
542 {
|
|
|
543 #endif
|
|
|
544 _CharT* __s = __p;
|
|
|
545 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
|
|
546 while (__s != __p + (__n-1))
|
|
|
547 {
|
|
|
548 typename _Traits::int_type __i = __is.rdbuf()->sgetc();
|
|
|
549 if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
550 {
|
|
|
551 __state |= ios_base::eofbit;
|
|
|
552 break;
|
|
|
553 }
|
|
|
554 _CharT __ch = _Traits::to_char_type(__i);
|
|
|
555 if (__ct.is(__ct.space, __ch))
|
|
|
556 break;
|
|
|
557 *__s++ = __ch;
|
|
|
558 __is.rdbuf()->sbumpc();
|
|
|
559 }
|
|
|
560 *__s = _CharT();
|
|
|
561 __is.width(0);
|
|
|
562 if (__s == __p)
|
|
|
563 __state |= ios_base::failbit;
|
|
|
564 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
565 }
|
|
|
566 catch (...)
|
|
|
567 {
|
|
|
568 __state |= ios_base::badbit;
|
|
|
569 __is.__setstate_nothrow(__state);
|
|
|
570 if (__is.exceptions() & ios_base::badbit)
|
|
|
571 {
|
|
|
572 throw;
|
|
|
573 }
|
|
|
574 }
|
|
|
575 #endif
|
|
|
576 __is.setstate(__state);
|
|
|
577 }
|
|
|
578 return __is;
|
|
|
579 }
|
|
|
580
|
|
|
581 #if _LIBCPP_STD_VER > 17
|
|
|
582
|
|
|
583 template<class _CharT, class _Traits, size_t _Np>
|
|
|
584 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
585 basic_istream<_CharT, _Traits>&
|
|
|
586 operator>>(basic_istream<_CharT, _Traits>& __is, _CharT (&__buf)[_Np])
|
|
|
587 {
|
|
|
588 size_t __n = _Np;
|
|
|
589 if (__is.width() > 0)
|
|
|
590 __n = _VSTD::min(size_t(__is.width()), _Np);
|
|
|
591 return _VSTD::__input_c_string(__is, __buf, __n);
|
|
|
592 }
|
|
|
593
|
|
|
594 template<class _Traits, size_t _Np>
|
|
|
595 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
596 basic_istream<char, _Traits>&
|
|
|
597 operator>>(basic_istream<char, _Traits>& __is, unsigned char (&__buf)[_Np])
|
|
|
598 {
|
|
|
599 return __is >> (char(&)[_Np])__buf;
|
|
|
600 }
|
|
|
601
|
|
|
602 template<class _Traits, size_t _Np>
|
|
|
603 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
604 basic_istream<char, _Traits>&
|
|
|
605 operator>>(basic_istream<char, _Traits>& __is, signed char (&__buf)[_Np])
|
|
|
606 {
|
|
|
607 return __is >> (char(&)[_Np])__buf;
|
|
|
608 }
|
|
|
609
|
|
|
610 #else
|
|
|
611
|
|
|
612 template<class _CharT, class _Traits>
|
|
|
613 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
614 basic_istream<_CharT, _Traits>&
|
|
|
615 operator>>(basic_istream<_CharT, _Traits>& __is, _CharT* __s)
|
|
|
616 {
|
|
|
617 streamsize __n = __is.width();
|
|
|
618 if (__n <= 0)
|
|
|
619 __n = numeric_limits<streamsize>::max() / sizeof(_CharT) - 1;
|
|
|
620 return _VSTD::__input_c_string(__is, __s, size_t(__n));
|
|
|
621 }
|
|
|
622
|
|
|
623 template<class _Traits>
|
|
|
624 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
625 basic_istream<char, _Traits>&
|
|
|
626 operator>>(basic_istream<char, _Traits>& __is, unsigned char* __s)
|
|
|
627 {
|
|
|
628 return __is >> (char*)__s;
|
|
|
629 }
|
|
|
630
|
|
|
631 template<class _Traits>
|
|
|
632 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
633 basic_istream<char, _Traits>&
|
|
|
634 operator>>(basic_istream<char, _Traits>& __is, signed char* __s)
|
|
|
635 {
|
|
|
636 return __is >> (char*)__s;
|
|
|
637 }
|
|
|
638
|
|
221
|
639 #endif // _LIBCPP_STD_VER > 17
|
|
150
|
640
|
|
|
641 template<class _CharT, class _Traits>
|
|
|
642 basic_istream<_CharT, _Traits>&
|
|
|
643 operator>>(basic_istream<_CharT, _Traits>& __is, _CharT& __c)
|
|
|
644 {
|
|
|
645 ios_base::iostate __state = ios_base::goodbit;
|
|
|
646 typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
|
|
|
647 if (__sen)
|
|
|
648 {
|
|
|
649 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
650 try
|
|
|
651 {
|
|
|
652 #endif
|
|
|
653 typename _Traits::int_type __i = __is.rdbuf()->sbumpc();
|
|
|
654 if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
655 __state |= ios_base::eofbit | ios_base::failbit;
|
|
|
656 else
|
|
|
657 __c = _Traits::to_char_type(__i);
|
|
|
658 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
659 }
|
|
|
660 catch (...)
|
|
|
661 {
|
|
|
662 __state |= ios_base::badbit;
|
|
|
663 __is.__setstate_nothrow(__state);
|
|
|
664 if (__is.exceptions() & ios_base::badbit)
|
|
|
665 {
|
|
|
666 throw;
|
|
|
667 }
|
|
|
668 }
|
|
|
669 #endif
|
|
|
670 __is.setstate(__state);
|
|
|
671 }
|
|
|
672 return __is;
|
|
|
673 }
|
|
|
674
|
|
|
675 template<class _Traits>
|
|
|
676 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
677 basic_istream<char, _Traits>&
|
|
|
678 operator>>(basic_istream<char, _Traits>& __is, unsigned char& __c)
|
|
|
679 {
|
|
|
680 return __is >> (char&)__c;
|
|
|
681 }
|
|
|
682
|
|
|
683 template<class _Traits>
|
|
|
684 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
685 basic_istream<char, _Traits>&
|
|
|
686 operator>>(basic_istream<char, _Traits>& __is, signed char& __c)
|
|
|
687 {
|
|
|
688 return __is >> (char&)__c;
|
|
|
689 }
|
|
|
690
|
|
|
691 template<class _CharT, class _Traits>
|
|
|
692 basic_istream<_CharT, _Traits>&
|
|
|
693 basic_istream<_CharT, _Traits>::operator>>(basic_streambuf<char_type, traits_type>* __sb)
|
|
|
694 {
|
|
|
695 ios_base::iostate __state = ios_base::goodbit;
|
|
|
696 __gc_ = 0;
|
|
|
697 sentry __s(*this, true);
|
|
|
698 if (__s)
|
|
|
699 {
|
|
|
700 if (__sb)
|
|
|
701 {
|
|
|
702 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
703 try
|
|
|
704 {
|
|
|
705 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
|
706 while (true)
|
|
|
707 {
|
|
|
708 typename traits_type::int_type __i = this->rdbuf()->sgetc();
|
|
|
709 if (traits_type::eq_int_type(__i, _Traits::eof()))
|
|
|
710 {
|
|
|
711 __state |= ios_base::eofbit;
|
|
|
712 break;
|
|
|
713 }
|
|
|
714 if (traits_type::eq_int_type(
|
|
|
715 __sb->sputc(traits_type::to_char_type(__i)),
|
|
|
716 traits_type::eof()))
|
|
|
717 break;
|
|
|
718 ++__gc_;
|
|
|
719 this->rdbuf()->sbumpc();
|
|
|
720 }
|
|
|
721 if (__gc_ == 0)
|
|
|
722 __state |= ios_base::failbit;
|
|
|
723 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
724 }
|
|
|
725 catch (...)
|
|
|
726 {
|
|
|
727 __state |= ios_base::badbit;
|
|
|
728 if (__gc_ == 0)
|
|
|
729 __state |= ios_base::failbit;
|
|
|
730
|
|
|
731 this->__setstate_nothrow(__state);
|
|
|
732 if (this->exceptions() & ios_base::failbit || this->exceptions() & ios_base::badbit)
|
|
|
733 {
|
|
|
734 throw;
|
|
|
735 }
|
|
|
736 }
|
|
221
|
737 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
738 }
|
|
|
739 else
|
|
|
740 {
|
|
|
741 __state |= ios_base::failbit;
|
|
|
742 }
|
|
|
743 this->setstate(__state);
|
|
|
744 }
|
|
|
745 return *this;
|
|
|
746 }
|
|
|
747
|
|
|
748 template<class _CharT, class _Traits>
|
|
|
749 typename basic_istream<_CharT, _Traits>::int_type
|
|
|
750 basic_istream<_CharT, _Traits>::get()
|
|
|
751 {
|
|
|
752 ios_base::iostate __state = ios_base::goodbit;
|
|
|
753 __gc_ = 0;
|
|
|
754 int_type __r = traits_type::eof();
|
|
|
755 sentry __s(*this, true);
|
|
|
756 if (__s)
|
|
|
757 {
|
|
|
758 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
759 try
|
|
|
760 {
|
|
|
761 #endif
|
|
|
762 __r = this->rdbuf()->sbumpc();
|
|
|
763 if (traits_type::eq_int_type(__r, traits_type::eof()))
|
|
|
764 __state |= ios_base::failbit | ios_base::eofbit;
|
|
|
765 else
|
|
|
766 __gc_ = 1;
|
|
|
767 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
768 }
|
|
|
769 catch (...)
|
|
|
770 {
|
|
|
771 this->__setstate_nothrow(this->rdstate() | ios_base::badbit);
|
|
|
772 if (this->exceptions() & ios_base::badbit)
|
|
|
773 {
|
|
|
774 throw;
|
|
|
775 }
|
|
|
776 }
|
|
|
777 #endif
|
|
|
778 this->setstate(__state);
|
|
|
779 }
|
|
|
780 return __r;
|
|
|
781 }
|
|
|
782
|
|
|
783 template<class _CharT, class _Traits>
|
|
|
784 basic_istream<_CharT, _Traits>&
|
|
|
785 basic_istream<_CharT, _Traits>::get(char_type* __s, streamsize __n, char_type __dlm)
|
|
|
786 {
|
|
|
787 ios_base::iostate __state = ios_base::goodbit;
|
|
|
788 __gc_ = 0;
|
|
|
789 sentry __sen(*this, true);
|
|
|
790 if (__sen)
|
|
|
791 {
|
|
|
792 if (__n > 0)
|
|
|
793 {
|
|
|
794 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
795 try
|
|
|
796 {
|
|
|
797 #endif
|
|
|
798 while (__gc_ < __n-1)
|
|
|
799 {
|
|
|
800 int_type __i = this->rdbuf()->sgetc();
|
|
|
801 if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
802 {
|
|
|
803 __state |= ios_base::eofbit;
|
|
|
804 break;
|
|
|
805 }
|
|
|
806 char_type __ch = traits_type::to_char_type(__i);
|
|
|
807 if (traits_type::eq(__ch, __dlm))
|
|
|
808 break;
|
|
|
809 *__s++ = __ch;
|
|
|
810 ++__gc_;
|
|
|
811 this->rdbuf()->sbumpc();
|
|
|
812 }
|
|
|
813 if (__gc_ == 0)
|
|
|
814 __state |= ios_base::failbit;
|
|
|
815 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
816 }
|
|
|
817 catch (...)
|
|
|
818 {
|
|
|
819 __state |= ios_base::badbit;
|
|
|
820 this->__setstate_nothrow(__state);
|
|
|
821 if (this->exceptions() & ios_base::badbit)
|
|
|
822 {
|
|
|
823 if (__n > 0)
|
|
|
824 *__s = char_type();
|
|
|
825 throw;
|
|
|
826 }
|
|
|
827 }
|
|
|
828 #endif
|
|
|
829 }
|
|
|
830 else
|
|
|
831 {
|
|
|
832 __state |= ios_base::failbit;
|
|
|
833 }
|
|
|
834
|
|
|
835 if (__n > 0)
|
|
|
836 *__s = char_type();
|
|
|
837 this->setstate(__state);
|
|
|
838 }
|
|
|
839 if (__n > 0)
|
|
|
840 *__s = char_type();
|
|
|
841 return *this;
|
|
|
842 }
|
|
|
843
|
|
|
844 template<class _CharT, class _Traits>
|
|
|
845 basic_istream<_CharT, _Traits>&
|
|
|
846 basic_istream<_CharT, _Traits>::get(basic_streambuf<char_type, traits_type>& __sb,
|
|
|
847 char_type __dlm)
|
|
|
848 {
|
|
|
849 ios_base::iostate __state = ios_base::goodbit;
|
|
|
850 __gc_ = 0;
|
|
|
851 sentry __sen(*this, true);
|
|
|
852 if (__sen)
|
|
|
853 {
|
|
|
854 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
855 try
|
|
|
856 {
|
|
221
|
857 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
858 while (true)
|
|
|
859 {
|
|
|
860 typename traits_type::int_type __i = this->rdbuf()->sgetc();
|
|
|
861 if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
862 {
|
|
|
863 __state |= ios_base::eofbit;
|
|
|
864 break;
|
|
|
865 }
|
|
|
866 char_type __ch = traits_type::to_char_type(__i);
|
|
|
867 if (traits_type::eq(__ch, __dlm))
|
|
|
868 break;
|
|
|
869 if (traits_type::eq_int_type(__sb.sputc(__ch), traits_type::eof()))
|
|
|
870 break;
|
|
|
871 ++__gc_;
|
|
|
872 this->rdbuf()->sbumpc();
|
|
|
873 }
|
|
|
874 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
875 }
|
|
|
876 catch (...)
|
|
|
877 {
|
|
|
878 __state |= ios_base::badbit;
|
|
|
879 // according to the spec, exceptions here are caught but not rethrown
|
|
|
880 }
|
|
221
|
881 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
882 if (__gc_ == 0)
|
|
|
883 __state |= ios_base::failbit;
|
|
|
884 this->setstate(__state);
|
|
|
885 }
|
|
|
886 return *this;
|
|
|
887 }
|
|
|
888
|
|
|
889 template<class _CharT, class _Traits>
|
|
|
890 basic_istream<_CharT, _Traits>&
|
|
|
891 basic_istream<_CharT, _Traits>::getline(char_type* __s, streamsize __n, char_type __dlm)
|
|
|
892 {
|
|
|
893 ios_base::iostate __state = ios_base::goodbit;
|
|
|
894 __gc_ = 0;
|
|
|
895 sentry __sen(*this, true);
|
|
|
896 if (__sen)
|
|
|
897 {
|
|
|
898 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
899 try
|
|
|
900 {
|
|
221
|
901 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
902 while (true)
|
|
|
903 {
|
|
|
904 typename traits_type::int_type __i = this->rdbuf()->sgetc();
|
|
|
905 if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
906 {
|
|
|
907 __state |= ios_base::eofbit;
|
|
|
908 break;
|
|
|
909 }
|
|
|
910 char_type __ch = traits_type::to_char_type(__i);
|
|
|
911 if (traits_type::eq(__ch, __dlm))
|
|
|
912 {
|
|
|
913 this->rdbuf()->sbumpc();
|
|
|
914 ++__gc_;
|
|
|
915 break;
|
|
|
916 }
|
|
|
917 if (__gc_ >= __n-1)
|
|
|
918 {
|
|
|
919 __state |= ios_base::failbit;
|
|
|
920 break;
|
|
|
921 }
|
|
|
922 *__s++ = __ch;
|
|
|
923 this->rdbuf()->sbumpc();
|
|
|
924 ++__gc_;
|
|
|
925 }
|
|
|
926 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
927 }
|
|
|
928 catch (...)
|
|
|
929 {
|
|
|
930 __state |= ios_base::badbit;
|
|
|
931 this->__setstate_nothrow(__state);
|
|
|
932 if (this->exceptions() & ios_base::badbit)
|
|
|
933 {
|
|
|
934 if (__n > 0)
|
|
|
935 *__s = char_type();
|
|
|
936 if (__gc_ == 0)
|
|
|
937 __state |= ios_base::failbit;
|
|
|
938 throw;
|
|
|
939 }
|
|
|
940 }
|
|
221
|
941 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
942 }
|
|
|
943 if (__n > 0)
|
|
|
944 *__s = char_type();
|
|
|
945 if (__gc_ == 0)
|
|
|
946 __state |= ios_base::failbit;
|
|
|
947 this->setstate(__state);
|
|
|
948 return *this;
|
|
|
949 }
|
|
|
950
|
|
|
951 template<class _CharT, class _Traits>
|
|
|
952 basic_istream<_CharT, _Traits>&
|
|
|
953 basic_istream<_CharT, _Traits>::ignore(streamsize __n, int_type __dlm)
|
|
|
954 {
|
|
|
955 ios_base::iostate __state = ios_base::goodbit;
|
|
|
956 __gc_ = 0;
|
|
|
957 sentry __sen(*this, true);
|
|
|
958 if (__sen)
|
|
|
959 {
|
|
|
960 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
961 try
|
|
|
962 {
|
|
221
|
963 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
964 if (__n == numeric_limits<streamsize>::max())
|
|
|
965 {
|
|
|
966 while (true)
|
|
|
967 {
|
|
|
968 typename traits_type::int_type __i = this->rdbuf()->sbumpc();
|
|
|
969 if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
970 {
|
|
|
971 __state |= ios_base::eofbit;
|
|
|
972 break;
|
|
|
973 }
|
|
|
974 ++__gc_;
|
|
|
975 if (traits_type::eq_int_type(__i, __dlm))
|
|
|
976 break;
|
|
|
977 }
|
|
|
978 }
|
|
|
979 else
|
|
|
980 {
|
|
|
981 while (__gc_ < __n)
|
|
|
982 {
|
|
|
983 typename traits_type::int_type __i = this->rdbuf()->sbumpc();
|
|
|
984 if (traits_type::eq_int_type(__i, traits_type::eof()))
|
|
|
985 {
|
|
|
986 __state |= ios_base::eofbit;
|
|
|
987 break;
|
|
|
988 }
|
|
|
989 ++__gc_;
|
|
|
990 if (traits_type::eq_int_type(__i, __dlm))
|
|
|
991 break;
|
|
|
992 }
|
|
|
993 }
|
|
|
994 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
995 }
|
|
|
996 catch (...)
|
|
|
997 {
|
|
|
998 __state |= ios_base::badbit;
|
|
|
999 this->__setstate_nothrow(__state);
|
|
|
1000 if (this->exceptions() & ios_base::badbit)
|
|
|
1001 {
|
|
|
1002 throw;
|
|
|
1003 }
|
|
|
1004 }
|
|
221
|
1005 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1006 this->setstate(__state);
|
|
|
1007 }
|
|
|
1008 return *this;
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 template<class _CharT, class _Traits>
|
|
|
1012 typename basic_istream<_CharT, _Traits>::int_type
|
|
|
1013 basic_istream<_CharT, _Traits>::peek()
|
|
|
1014 {
|
|
|
1015 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1016 __gc_ = 0;
|
|
|
1017 int_type __r = traits_type::eof();
|
|
|
1018 sentry __sen(*this, true);
|
|
|
1019 if (__sen)
|
|
|
1020 {
|
|
|
1021 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1022 try
|
|
|
1023 {
|
|
221
|
1024 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1025 __r = this->rdbuf()->sgetc();
|
|
|
1026 if (traits_type::eq_int_type(__r, traits_type::eof()))
|
|
|
1027 __state |= ios_base::eofbit;
|
|
|
1028 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1029 }
|
|
|
1030 catch (...)
|
|
|
1031 {
|
|
|
1032 __state |= ios_base::badbit;
|
|
|
1033 this->__setstate_nothrow(__state);
|
|
|
1034 if (this->exceptions() & ios_base::badbit)
|
|
|
1035 {
|
|
|
1036 throw;
|
|
|
1037 }
|
|
|
1038 }
|
|
221
|
1039 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1040 this->setstate(__state);
|
|
|
1041 }
|
|
|
1042 return __r;
|
|
|
1043 }
|
|
|
1044
|
|
|
1045 template<class _CharT, class _Traits>
|
|
|
1046 basic_istream<_CharT, _Traits>&
|
|
|
1047 basic_istream<_CharT, _Traits>::read(char_type* __s, streamsize __n)
|
|
|
1048 {
|
|
|
1049 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1050 __gc_ = 0;
|
|
|
1051 sentry __sen(*this, true);
|
|
|
1052 if (__sen)
|
|
|
1053 {
|
|
|
1054 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1055 try
|
|
|
1056 {
|
|
221
|
1057 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1058 __gc_ = this->rdbuf()->sgetn(__s, __n);
|
|
|
1059 if (__gc_ != __n)
|
|
|
1060 __state |= ios_base::failbit | ios_base::eofbit;
|
|
|
1061 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1062 }
|
|
|
1063 catch (...)
|
|
|
1064 {
|
|
|
1065 __state |= ios_base::badbit;
|
|
|
1066 this->__setstate_nothrow(__state);
|
|
|
1067 if (this->exceptions() & ios_base::badbit)
|
|
|
1068 {
|
|
|
1069 throw;
|
|
|
1070 }
|
|
|
1071 }
|
|
221
|
1072 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1073 }
|
|
|
1074 else
|
|
|
1075 {
|
|
|
1076 __state |= ios_base::failbit;
|
|
|
1077 }
|
|
|
1078 this->setstate(__state);
|
|
|
1079 return *this;
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 template<class _CharT, class _Traits>
|
|
|
1083 streamsize
|
|
|
1084 basic_istream<_CharT, _Traits>::readsome(char_type* __s, streamsize __n)
|
|
|
1085 {
|
|
|
1086 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1087 __gc_ = 0;
|
|
|
1088 sentry __sen(*this, true);
|
|
|
1089 if (__sen)
|
|
|
1090 {
|
|
|
1091 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1092 try
|
|
|
1093 {
|
|
221
|
1094 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1095 streamsize __c = this->rdbuf()->in_avail();
|
|
|
1096 switch (__c)
|
|
|
1097 {
|
|
|
1098 case -1:
|
|
|
1099 __state |= ios_base::eofbit;
|
|
|
1100 break;
|
|
|
1101 case 0:
|
|
|
1102 break;
|
|
|
1103 default:
|
|
|
1104 __n = _VSTD::min(__c, __n);
|
|
|
1105 __gc_ = this->rdbuf()->sgetn(__s, __n);
|
|
|
1106 if (__gc_ != __n)
|
|
|
1107 __state |= ios_base::failbit | ios_base::eofbit;
|
|
|
1108 break;
|
|
|
1109 }
|
|
|
1110 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1111 }
|
|
|
1112 catch (...)
|
|
|
1113 {
|
|
|
1114 __state |= ios_base::badbit;
|
|
|
1115 this->__setstate_nothrow(__state);
|
|
|
1116 if (this->exceptions() & ios_base::badbit)
|
|
|
1117 {
|
|
|
1118 throw;
|
|
|
1119 }
|
|
|
1120 }
|
|
221
|
1121 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1122 }
|
|
|
1123 else
|
|
|
1124 {
|
|
|
1125 __state |= ios_base::failbit;
|
|
|
1126 }
|
|
|
1127 this->setstate(__state);
|
|
|
1128 return __gc_;
|
|
|
1129 }
|
|
|
1130
|
|
|
1131 template<class _CharT, class _Traits>
|
|
|
1132 basic_istream<_CharT, _Traits>&
|
|
|
1133 basic_istream<_CharT, _Traits>::putback(char_type __c)
|
|
|
1134 {
|
|
|
1135 ios_base::iostate __state = this->rdstate() & ~ios_base::eofbit;
|
|
|
1136 __gc_ = 0;
|
|
|
1137 this->clear(__state);
|
|
|
1138 sentry __sen(*this, true);
|
|
|
1139 if (__sen)
|
|
|
1140 {
|
|
|
1141 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1142 try
|
|
|
1143 {
|
|
221
|
1144 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
|
1145 if (this->rdbuf() == nullptr || this->rdbuf()->sputbackc(__c) == traits_type::eof())
|
|
150
|
1146 __state |= ios_base::badbit;
|
|
|
1147 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1148 }
|
|
|
1149 catch (...)
|
|
|
1150 {
|
|
|
1151 __state |= ios_base::badbit;
|
|
|
1152 this->__setstate_nothrow(__state);
|
|
|
1153 if (this->exceptions() & ios_base::badbit)
|
|
|
1154 {
|
|
|
1155 throw;
|
|
|
1156 }
|
|
|
1157 }
|
|
221
|
1158 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1159 }
|
|
|
1160 else
|
|
|
1161 {
|
|
|
1162 __state |= ios_base::failbit;
|
|
|
1163 }
|
|
|
1164 this->setstate(__state);
|
|
|
1165 return *this;
|
|
|
1166 }
|
|
|
1167
|
|
|
1168 template<class _CharT, class _Traits>
|
|
|
1169 basic_istream<_CharT, _Traits>&
|
|
|
1170 basic_istream<_CharT, _Traits>::unget()
|
|
|
1171 {
|
|
|
1172 ios_base::iostate __state = this->rdstate() & ~ios_base::eofbit;
|
|
|
1173 __gc_ = 0;
|
|
|
1174 this->clear(__state);
|
|
|
1175 sentry __sen(*this, true);
|
|
|
1176 if (__sen)
|
|
|
1177 {
|
|
|
1178 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1179 try
|
|
|
1180 {
|
|
221
|
1181 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
|
1182 if (this->rdbuf() == nullptr || this->rdbuf()->sungetc() == traits_type::eof())
|
|
150
|
1183 __state |= ios_base::badbit;
|
|
|
1184 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1185 }
|
|
|
1186 catch (...)
|
|
|
1187 {
|
|
|
1188 __state |= ios_base::badbit;
|
|
|
1189 this->__setstate_nothrow(__state);
|
|
|
1190 if (this->exceptions() & ios_base::badbit)
|
|
|
1191 {
|
|
|
1192 throw;
|
|
|
1193 }
|
|
|
1194 }
|
|
221
|
1195 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1196 }
|
|
|
1197 else
|
|
|
1198 {
|
|
|
1199 __state |= ios_base::failbit;
|
|
|
1200 }
|
|
|
1201 this->setstate(__state);
|
|
|
1202 return *this;
|
|
|
1203 }
|
|
|
1204
|
|
|
1205 template<class _CharT, class _Traits>
|
|
|
1206 int
|
|
|
1207 basic_istream<_CharT, _Traits>::sync()
|
|
|
1208 {
|
|
|
1209 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1210 int __r = 0;
|
|
|
1211 sentry __sen(*this, true);
|
|
|
1212 if (__sen)
|
|
|
1213 {
|
|
|
1214 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1215 try
|
|
|
1216 {
|
|
221
|
1217 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
|
1218 if (this->rdbuf() == nullptr)
|
|
150
|
1219 return -1;
|
|
|
1220 if (this->rdbuf()->pubsync() == -1)
|
|
|
1221 {
|
|
|
1222 __state |= ios_base::badbit;
|
|
|
1223 return -1;
|
|
|
1224 }
|
|
|
1225 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1226 }
|
|
|
1227 catch (...)
|
|
|
1228 {
|
|
|
1229 __state |= ios_base::badbit;
|
|
|
1230 this->__setstate_nothrow(__state);
|
|
|
1231 if (this->exceptions() & ios_base::badbit)
|
|
|
1232 {
|
|
|
1233 throw;
|
|
|
1234 }
|
|
|
1235 }
|
|
221
|
1236 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1237 this->setstate(__state);
|
|
|
1238 }
|
|
|
1239 return __r;
|
|
|
1240 }
|
|
|
1241
|
|
|
1242 template<class _CharT, class _Traits>
|
|
|
1243 typename basic_istream<_CharT, _Traits>::pos_type
|
|
|
1244 basic_istream<_CharT, _Traits>::tellg()
|
|
|
1245 {
|
|
|
1246 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1247 pos_type __r(-1);
|
|
|
1248 sentry __sen(*this, true);
|
|
|
1249 if (__sen)
|
|
|
1250 {
|
|
|
1251 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1252 try
|
|
|
1253 {
|
|
221
|
1254 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1255 __r = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::in);
|
|
|
1256 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1257 }
|
|
|
1258 catch (...)
|
|
|
1259 {
|
|
|
1260 __state |= ios_base::badbit;
|
|
|
1261 this->__setstate_nothrow(__state);
|
|
|
1262 if (this->exceptions() & ios_base::badbit)
|
|
|
1263 {
|
|
|
1264 throw;
|
|
|
1265 }
|
|
|
1266 }
|
|
221
|
1267 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1268 this->setstate(__state);
|
|
|
1269 }
|
|
|
1270 return __r;
|
|
|
1271 }
|
|
|
1272
|
|
|
1273 template<class _CharT, class _Traits>
|
|
|
1274 basic_istream<_CharT, _Traits>&
|
|
|
1275 basic_istream<_CharT, _Traits>::seekg(pos_type __pos)
|
|
|
1276 {
|
|
|
1277 ios_base::iostate __state = this->rdstate() & ~ios_base::eofbit;
|
|
|
1278 this->clear(__state);
|
|
|
1279 sentry __sen(*this, true);
|
|
|
1280 if (__sen)
|
|
|
1281 {
|
|
|
1282 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1283 try
|
|
|
1284 {
|
|
221
|
1285 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1286 if (this->rdbuf()->pubseekpos(__pos, ios_base::in) == pos_type(-1))
|
|
|
1287 __state |= ios_base::failbit;
|
|
|
1288 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1289 }
|
|
|
1290 catch (...)
|
|
|
1291 {
|
|
|
1292 __state |= ios_base::badbit;
|
|
|
1293 this->__setstate_nothrow(__state);
|
|
|
1294 if (this->exceptions() & ios_base::badbit)
|
|
|
1295 {
|
|
|
1296 throw;
|
|
|
1297 }
|
|
|
1298 }
|
|
221
|
1299 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1300 this->setstate(__state);
|
|
|
1301 }
|
|
|
1302 return *this;
|
|
|
1303 }
|
|
|
1304
|
|
|
1305 template<class _CharT, class _Traits>
|
|
|
1306 basic_istream<_CharT, _Traits>&
|
|
|
1307 basic_istream<_CharT, _Traits>::seekg(off_type __off, ios_base::seekdir __dir)
|
|
|
1308 {
|
|
|
1309 ios_base::iostate __state = this->rdstate() & ~ios_base::eofbit;
|
|
|
1310 this->clear(__state);
|
|
|
1311 sentry __sen(*this, true);
|
|
|
1312 if (__sen)
|
|
|
1313 {
|
|
|
1314 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1315 try
|
|
|
1316 {
|
|
221
|
1317 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1318 if (this->rdbuf()->pubseekoff(__off, __dir, ios_base::in) == pos_type(-1))
|
|
|
1319 __state |= ios_base::failbit;
|
|
|
1320 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1321 }
|
|
|
1322 catch (...)
|
|
|
1323 {
|
|
|
1324 __state |= ios_base::badbit;
|
|
|
1325 this->__setstate_nothrow(__state);
|
|
|
1326 if (this->exceptions() & ios_base::badbit)
|
|
|
1327 {
|
|
|
1328 throw;
|
|
|
1329 }
|
|
|
1330 }
|
|
221
|
1331 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1332 this->setstate(__state);
|
|
|
1333 }
|
|
|
1334 return *this;
|
|
|
1335 }
|
|
|
1336
|
|
|
1337 template <class _CharT, class _Traits>
|
|
|
1338 basic_istream<_CharT, _Traits>&
|
|
|
1339 ws(basic_istream<_CharT, _Traits>& __is)
|
|
|
1340 {
|
|
|
1341 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1342 typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true);
|
|
|
1343 if (__sen)
|
|
|
1344 {
|
|
|
1345 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1346 try
|
|
|
1347 {
|
|
221
|
1348 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1349 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
|
|
1350 while (true)
|
|
|
1351 {
|
|
|
1352 typename _Traits::int_type __i = __is.rdbuf()->sgetc();
|
|
|
1353 if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
1354 {
|
|
|
1355 __state |= ios_base::eofbit;
|
|
|
1356 break;
|
|
|
1357 }
|
|
|
1358 if (!__ct.is(__ct.space, _Traits::to_char_type(__i)))
|
|
|
1359 break;
|
|
|
1360 __is.rdbuf()->sbumpc();
|
|
|
1361 }
|
|
|
1362 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1363 }
|
|
|
1364 catch (...)
|
|
|
1365 {
|
|
|
1366 __state |= ios_base::badbit;
|
|
|
1367 __is.__setstate_nothrow(__state);
|
|
|
1368 if (__is.exceptions() & ios_base::badbit)
|
|
|
1369 {
|
|
|
1370 throw;
|
|
|
1371 }
|
|
|
1372 }
|
|
221
|
1373 #endif // _LIBCPP_NO_EXCEPTIONS
|
|
150
|
1374 __is.setstate(__state);
|
|
|
1375 }
|
|
|
1376 return __is;
|
|
|
1377 }
|
|
|
1378
|
|
|
1379 #ifndef _LIBCPP_CXX03_LANG
|
|
|
1380
|
|
221
|
1381 template <class _Stream, class _Tp, class = void>
|
|
|
1382 struct __is_istreamable : false_type { };
|
|
|
1383
|
|
|
1384 template <class _Stream, class _Tp>
|
|
|
1385 struct __is_istreamable<_Stream, _Tp, decltype(
|
|
|
1386 declval<_Stream>() >> declval<_Tp>(), void()
|
|
|
1387 )> : true_type { };
|
|
|
1388
|
|
|
1389 template <class _Stream, class _Tp, class = typename enable_if<
|
|
|
1390 _And<is_base_of<ios_base, _Stream>,
|
|
|
1391 __is_istreamable<_Stream&, _Tp&&>>::value
|
|
|
1392 >::type>
|
|
|
1393 _LIBCPP_INLINE_VISIBILITY
|
|
|
1394 _Stream&& operator>>(_Stream&& __is, _Tp&& __x)
|
|
150
|
1395 {
|
|
|
1396 __is >> _VSTD::forward<_Tp>(__x);
|
|
221
|
1397 return _VSTD::move(__is);
|
|
150
|
1398 }
|
|
|
1399
|
|
221
|
1400 #endif // _LIBCPP_CXX03_LANG
|
|
150
|
1401
|
|
|
1402 template <class _CharT, class _Traits>
|
|
|
1403 class _LIBCPP_TEMPLATE_VIS basic_iostream
|
|
|
1404 : public basic_istream<_CharT, _Traits>,
|
|
|
1405 public basic_ostream<_CharT, _Traits>
|
|
|
1406 {
|
|
|
1407 public:
|
|
|
1408 // types:
|
|
|
1409 typedef _CharT char_type;
|
|
|
1410 typedef _Traits traits_type;
|
|
|
1411 typedef typename traits_type::int_type int_type;
|
|
|
1412 typedef typename traits_type::pos_type pos_type;
|
|
|
1413 typedef typename traits_type::off_type off_type;
|
|
|
1414
|
|
|
1415 // constructor/destructor
|
|
|
1416 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
|
|
1417 explicit basic_iostream(basic_streambuf<char_type, traits_type>* __sb)
|
|
|
1418 : basic_istream<_CharT, _Traits>(__sb)
|
|
|
1419 {}
|
|
|
1420
|
|
|
1421 virtual ~basic_iostream();
|
|
|
1422 protected:
|
|
|
1423 #ifndef _LIBCPP_CXX03_LANG
|
|
|
1424 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
1425 basic_iostream(basic_iostream&& __rhs);
|
|
|
1426
|
|
|
1427 // assign/swap
|
|
|
1428 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
1429 basic_iostream& operator=(basic_iostream&& __rhs);
|
|
|
1430 #endif
|
|
|
1431 inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
|
|
|
1432 void swap(basic_iostream& __rhs)
|
|
|
1433 { basic_istream<char_type, traits_type>::swap(__rhs); }
|
|
|
1434 };
|
|
|
1435
|
|
|
1436 #ifndef _LIBCPP_CXX03_LANG
|
|
|
1437
|
|
|
1438 template <class _CharT, class _Traits>
|
|
|
1439 basic_iostream<_CharT, _Traits>::basic_iostream(basic_iostream&& __rhs)
|
|
|
1440 : basic_istream<_CharT, _Traits>(_VSTD::move(__rhs))
|
|
|
1441 {
|
|
|
1442 }
|
|
|
1443
|
|
|
1444 template <class _CharT, class _Traits>
|
|
|
1445 basic_iostream<_CharT, _Traits>&
|
|
|
1446 basic_iostream<_CharT, _Traits>::operator=(basic_iostream&& __rhs)
|
|
|
1447 {
|
|
|
1448 swap(__rhs);
|
|
|
1449 return *this;
|
|
|
1450 }
|
|
|
1451
|
|
221
|
1452 #endif // _LIBCPP_CXX03_LANG
|
|
150
|
1453
|
|
|
1454 template <class _CharT, class _Traits>
|
|
|
1455 basic_iostream<_CharT, _Traits>::~basic_iostream()
|
|
|
1456 {
|
|
|
1457 }
|
|
|
1458
|
|
|
1459 template<class _CharT, class _Traits, class _Allocator>
|
|
|
1460 basic_istream<_CharT, _Traits>&
|
|
|
1461 operator>>(basic_istream<_CharT, _Traits>& __is,
|
|
|
1462 basic_string<_CharT, _Traits, _Allocator>& __str)
|
|
|
1463 {
|
|
|
1464 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1465 typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
|
|
|
1466 if (__sen)
|
|
|
1467 {
|
|
|
1468 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1469 try
|
|
|
1470 {
|
|
|
1471 #endif
|
|
|
1472 __str.clear();
|
|
|
1473 streamsize __n = __is.width();
|
|
|
1474 if (__n <= 0)
|
|
|
1475 __n = __str.max_size();
|
|
|
1476 if (__n <= 0)
|
|
|
1477 __n = numeric_limits<streamsize>::max();
|
|
|
1478 streamsize __c = 0;
|
|
|
1479 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
|
|
1480 while (__c < __n)
|
|
|
1481 {
|
|
|
1482 typename _Traits::int_type __i = __is.rdbuf()->sgetc();
|
|
|
1483 if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
1484 {
|
|
|
1485 __state |= ios_base::eofbit;
|
|
|
1486 break;
|
|
|
1487 }
|
|
|
1488 _CharT __ch = _Traits::to_char_type(__i);
|
|
|
1489 if (__ct.is(__ct.space, __ch))
|
|
|
1490 break;
|
|
|
1491 __str.push_back(__ch);
|
|
|
1492 ++__c;
|
|
|
1493 __is.rdbuf()->sbumpc();
|
|
|
1494 }
|
|
|
1495 __is.width(0);
|
|
|
1496 if (__c == 0)
|
|
|
1497 __state |= ios_base::failbit;
|
|
|
1498 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1499 }
|
|
|
1500 catch (...)
|
|
|
1501 {
|
|
|
1502 __state |= ios_base::badbit;
|
|
|
1503 __is.__setstate_nothrow(__state);
|
|
|
1504 if (__is.exceptions() & ios_base::badbit)
|
|
|
1505 {
|
|
|
1506 throw;
|
|
|
1507 }
|
|
|
1508 }
|
|
|
1509 #endif
|
|
|
1510 __is.setstate(__state);
|
|
|
1511 }
|
|
|
1512 return __is;
|
|
|
1513 }
|
|
|
1514
|
|
|
1515 template<class _CharT, class _Traits, class _Allocator>
|
|
|
1516 basic_istream<_CharT, _Traits>&
|
|
|
1517 getline(basic_istream<_CharT, _Traits>& __is,
|
|
|
1518 basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm)
|
|
|
1519 {
|
|
|
1520 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1521 typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true);
|
|
|
1522 if (__sen)
|
|
|
1523 {
|
|
|
1524 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1525 try
|
|
|
1526 {
|
|
|
1527 #endif
|
|
|
1528 __str.clear();
|
|
|
1529 streamsize __extr = 0;
|
|
|
1530 while (true)
|
|
|
1531 {
|
|
|
1532 typename _Traits::int_type __i = __is.rdbuf()->sbumpc();
|
|
|
1533 if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
1534 {
|
|
|
1535 __state |= ios_base::eofbit;
|
|
|
1536 break;
|
|
|
1537 }
|
|
|
1538 ++__extr;
|
|
|
1539 _CharT __ch = _Traits::to_char_type(__i);
|
|
|
1540 if (_Traits::eq(__ch, __dlm))
|
|
|
1541 break;
|
|
|
1542 __str.push_back(__ch);
|
|
|
1543 if (__str.size() == __str.max_size())
|
|
|
1544 {
|
|
|
1545 __state |= ios_base::failbit;
|
|
|
1546 break;
|
|
|
1547 }
|
|
|
1548 }
|
|
|
1549 if (__extr == 0)
|
|
|
1550 __state |= ios_base::failbit;
|
|
|
1551 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1552 }
|
|
|
1553 catch (...)
|
|
|
1554 {
|
|
|
1555 __state |= ios_base::badbit;
|
|
|
1556 __is.__setstate_nothrow(__state);
|
|
|
1557 if (__is.exceptions() & ios_base::badbit)
|
|
|
1558 {
|
|
|
1559 throw;
|
|
|
1560 }
|
|
|
1561 }
|
|
|
1562 #endif
|
|
|
1563 __is.setstate(__state);
|
|
|
1564 }
|
|
|
1565 return __is;
|
|
|
1566 }
|
|
|
1567
|
|
|
1568 template<class _CharT, class _Traits, class _Allocator>
|
|
|
1569 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
1570 basic_istream<_CharT, _Traits>&
|
|
|
1571 getline(basic_istream<_CharT, _Traits>& __is,
|
|
|
1572 basic_string<_CharT, _Traits, _Allocator>& __str)
|
|
|
1573 {
|
|
|
1574 return getline(__is, __str, __is.widen('\n'));
|
|
|
1575 }
|
|
|
1576
|
|
|
1577 #ifndef _LIBCPP_CXX03_LANG
|
|
|
1578
|
|
|
1579 template<class _CharT, class _Traits, class _Allocator>
|
|
|
1580 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
1581 basic_istream<_CharT, _Traits>&
|
|
|
1582 getline(basic_istream<_CharT, _Traits>&& __is,
|
|
|
1583 basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm)
|
|
|
1584 {
|
|
|
1585 return getline(__is, __str, __dlm);
|
|
|
1586 }
|
|
|
1587
|
|
|
1588 template<class _CharT, class _Traits, class _Allocator>
|
|
|
1589 inline _LIBCPP_INLINE_VISIBILITY
|
|
|
1590 basic_istream<_CharT, _Traits>&
|
|
|
1591 getline(basic_istream<_CharT, _Traits>&& __is,
|
|
|
1592 basic_string<_CharT, _Traits, _Allocator>& __str)
|
|
|
1593 {
|
|
|
1594 return getline(__is, __str, __is.widen('\n'));
|
|
|
1595 }
|
|
|
1596
|
|
221
|
1597 #endif // _LIBCPP_CXX03_LANG
|
|
150
|
1598
|
|
|
1599 template <class _CharT, class _Traits, size_t _Size>
|
|
|
1600 basic_istream<_CharT, _Traits>&
|
|
|
1601 operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x)
|
|
|
1602 {
|
|
|
1603 ios_base::iostate __state = ios_base::goodbit;
|
|
|
1604 typename basic_istream<_CharT, _Traits>::sentry __sen(__is);
|
|
|
1605 if (__sen)
|
|
|
1606 {
|
|
|
1607 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1608 try
|
|
|
1609 {
|
|
|
1610 #endif
|
|
|
1611 basic_string<_CharT, _Traits> __str;
|
|
|
1612 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc());
|
|
|
1613 size_t __c = 0;
|
|
|
1614 _CharT __zero = __ct.widen('0');
|
|
|
1615 _CharT __one = __ct.widen('1');
|
|
|
1616 while (__c < _Size)
|
|
|
1617 {
|
|
|
1618 typename _Traits::int_type __i = __is.rdbuf()->sgetc();
|
|
|
1619 if (_Traits::eq_int_type(__i, _Traits::eof()))
|
|
|
1620 {
|
|
|
1621 __state |= ios_base::eofbit;
|
|
|
1622 break;
|
|
|
1623 }
|
|
|
1624 _CharT __ch = _Traits::to_char_type(__i);
|
|
|
1625 if (!_Traits::eq(__ch, __zero) && !_Traits::eq(__ch, __one))
|
|
|
1626 break;
|
|
|
1627 __str.push_back(__ch);
|
|
|
1628 ++__c;
|
|
|
1629 __is.rdbuf()->sbumpc();
|
|
|
1630 }
|
|
|
1631 __x = bitset<_Size>(__str);
|
|
|
1632 if (_Size > 0 && __c == 0)
|
|
|
1633 __state |= ios_base::failbit;
|
|
|
1634 #ifndef _LIBCPP_NO_EXCEPTIONS
|
|
|
1635 }
|
|
|
1636 catch (...)
|
|
|
1637 {
|
|
|
1638 __state |= ios_base::badbit;
|
|
|
1639 __is.__setstate_nothrow(__state);
|
|
|
1640 if (__is.exceptions() & ios_base::badbit)
|
|
|
1641 {
|
|
|
1642 throw;
|
|
|
1643 }
|
|
|
1644 }
|
|
|
1645 #endif
|
|
|
1646 __is.setstate(__state);
|
|
|
1647 }
|
|
|
1648 return __is;
|
|
|
1649 }
|
|
|
1650
|
|
|
1651 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istream<char>)
|
|
|
1652 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_istream<wchar_t>)
|
|
|
1653 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_iostream<char>)
|
|
|
1654
|
|
|
1655 _LIBCPP_END_NAMESPACE_STD
|
|
|
1656
|
|
|
1657 _LIBCPP_POP_MACROS
|
|
|
1658
|
|
221
|
1659 #endif // _LIBCPP_ISTREAM
|
