| 122 | // reference: https://github.com/gcc-mirror/gcc/blob/gcc-7_3_0-release/libstdc%2B%2B-v3/include/std/fstream#L270 |
| 123 | |
| 124 | static std::string openmodeToStr(std::ios_base::openmode mode) |
| 125 | { |
| 126 | switch (mode & ~std::ios_base::ate) { |
| 127 | case std::ios_base::out: |
| 128 | case std::ios_base::out | std::ios_base::trunc: |
| 129 | return "w"; |
| 130 | case std::ios_base::out | std::ios_base::app: |
| 131 | case std::ios_base::app: |
| 132 | return "a"; |
| 133 | case std::ios_base::in: |
| 134 | return "r"; |
| 135 | case std::ios_base::in | std::ios_base::out: |
| 136 | return "r+"; |
| 137 | case std::ios_base::in | std::ios_base::out | std::ios_base::trunc: |
| 138 | return "w+"; |
| 139 | case std::ios_base::in | std::ios_base::out | std::ios_base::app: |
| 140 | case std::ios_base::in | std::ios_base::app: |
| 141 | return "a+"; |
| 142 | case std::ios_base::out | std::ios_base::binary: |
| 143 | case std::ios_base::out | std::ios_base::trunc | std::ios_base::binary: |
| 144 | return "wb"; |
| 145 | case std::ios_base::out | std::ios_base::app | std::ios_base::binary: |
| 146 | case std::ios_base::app | std::ios_base::binary: |
| 147 | return "ab"; |
| 148 | case std::ios_base::in | std::ios_base::binary: |
| 149 | return "rb"; |
| 150 | case std::ios_base::in | std::ios_base::out | std::ios_base::binary: |
| 151 | return "r+b"; |
| 152 | case std::ios_base::in | std::ios_base::out | std::ios_base::trunc | std::ios_base::binary: |
| 153 | return "w+b"; |
| 154 | case std::ios_base::in | std::ios_base::out | std::ios_base::app | std::ios_base::binary: |
| 155 | case std::ios_base::in | std::ios_base::app | std::ios_base::binary: |
| 156 | return "a+b"; |
| 157 | default: |
| 158 | return std::string(); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | void ifstream::open(const fs::path& p, std::ios_base::openmode mode) |
| 163 | { |