projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| e6817382 BJ |
1 | .TH FERROR 3S |
| 2 | .SH NAME | |
| 3 | feof, ferror, clearerr, fileno \- stream status inquiries | |
| 4 | .SH SYNOPSIS | |
| 5 | .B #include <stdio.h> | |
| 6 | .PP | |
| 7 | .B feof(stream) | |
| 8 | .br | |
| 9 | .SM | |
| 10 | .B FILE | |
| 11 | .B *stream; | |
| 12 | .PP | |
| 13 | .B ferror(stream) | |
| 14 | .br | |
| 15 | .SM | |
| 16 | .B FILE | |
| 17 | .B *stream | |
| 18 | .PP | |
| 19 | .B clearerr(stream) | |
| 20 | .br | |
| 21 | .SM | |
| 22 | .B FILE | |
| 23 | .B *stream | |
| 24 | .PP | |
| 25 | .B fileno(stream) | |
| 26 | .br | |
| 27 | .SM | |
| 28 | .B FILE | |
| 29 | .B *stream; | |
| 30 | .SH DESCRIPTION | |
| 31 | .I Feof | |
| 32 | returns non-zero when end of file is read on the named input | |
| 33 | .I stream, | |
| 34 | otherwise zero. | |
| 35 | .PP | |
| 36 | .I Ferror | |
| 37 | returns non-zero when an error has occurred reading or writing | |
| 38 | the named | |
| 39 | .I stream, | |
| 40 | otherwise zero. | |
| 41 | Unless cleared by | |
| 42 | .I clearerr, | |
| 43 | the error indication lasts until | |
| 44 | the stream is closed. | |
| 45 | .PP | |
| 46 | .I Clrerr | |
| 47 | resets the error indication on the named | |
| 48 | .I stream. | |
| 49 | .PP | |
| 50 | .I Fileno | |
| 51 | returns the integer file descriptor | |
| 52 | associated with the | |
| 53 | .I stream, | |
| 54 | see | |
| 55 | .IR open (2). | |
| 56 | .PP | |
| 57 | These functions | |
| 58 | are implemented as macros; | |
| 59 | they cannot be redeclared. | |
| 60 | .SH "SEE ALSO" | |
| 61 | fopen(3), open(2) |