* Counts number of bytes in file. * * @return streamsize */
| 650 | * @return streamsize |
| 651 | */ |
| 652 | streamsize TextFile::Size() { |
| 653 | OpenChk(true); |
| 654 | |
| 655 | // Size () --- returns file size in bytes |
| 656 | |
| 657 | bool eofStat = false; |
| 658 | if(p_stream.eof()) { // current state of stream is 'eof' |
| 659 | eofStat = true; |
| 660 | p_stream.clear(); |
| 661 | } |
| 662 | |
| 663 | streampos savePos = p_stream.tellg(); |
| 664 | p_stream.seekg(0, ios_base::end); |
| 665 | streamsize bytes = p_stream.tellg(); |
| 666 | p_stream.seekg(savePos, ios_base::beg); |
| 667 | |
| 668 | if(eofStat) { // restore current state of stream 'eof' |
| 669 | p_stream.seekg(0, ios_base::end); |
| 670 | p_stream.get(); |
| 671 | } |
| 672 | return bytes; |
| 673 | } |
| 674 | } // end namespace isis |
| 675 | |
| 676 |