| 260 | } |
| 261 | |
| 262 | int SetPosRel(InputStream::offset_type delta, int mode) noexcept { |
| 263 | offset_type offset = delta; |
| 264 | switch (mode) { |
| 265 | case SEEK_SET: |
| 266 | break; |
| 267 | |
| 268 | case SEEK_CUR: |
| 269 | offset += is.GetOffset(); |
| 270 | break; |
| 271 | |
| 272 | case SEEK_END: |
| 273 | if (!is.KnownSize()) |
| 274 | return -1; |
| 275 | |
| 276 | offset += is.GetSize(); |
| 277 | break; |
| 278 | |
| 279 | default: |
| 280 | return -1; |
| 281 | } |
| 282 | |
| 283 | return SetPosAbs(offset); |
| 284 | } |
| 285 | |
| 286 | int PushBackByte(int c) noexcept { |
| 287 | if (last_byte == EOF) { |
no test coverage detected