Rev 8730 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 8718 | turbocat | 1 | #include |
| 2 | #include |
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| 3 | // non standard realization - support for virtually change ONLY ONE char |
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| 4 | |||
| 5 | int ungetc(int c, FILE* file) |
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| 6 | { |
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| 7 | int res; |
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| 8 | |||
| 9 | if(!file){ |
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| 10 | errno = EBADF; |
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| 11 | return EOF; |
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| 12 | } |
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| 13 | |||
| 8730 | turbocat | 14 | if (file->mode != _FILEMODE_R){ |
| 8718 | turbocat | 15 | errno = EACCES; |
| 16 | return EOF; |
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| 17 | } |
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| 18 | |||
| 8730 | turbocat | 19 | if (file->position == 0 || c == EOF) |
| 8718 | turbocat | 20 | { |
| 21 | errno = EOF; |
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| 22 | return EOF; |
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| 23 | } |
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| 24 | |||
| 25 | file->__ungetc_emu_buff = c; |
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| 26 | file->position--; |
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| 27 | return c; |
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| 28 | } |