Commit | Line | Data |
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a876201b KM |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
2 | ||
e5053b93 | 3 | static char sccsid[] = "@(#)READ8.c 1.3 %G%"; |
a876201b KM |
4 | |
5 | #include "h00vars.h" | |
6 | #include "h01errs.h" | |
7 | ||
8 | double | |
9 | READ8(curfile) | |
10 | ||
11 | register struct iorec *curfile; | |
12 | { | |
13 | double data; | |
53909d1e | 14 | int retval; |
a876201b KM |
15 | |
16 | if (curfile->funit & FWRITE) { | |
17 | ERROR(EREADIT, curfile->pfname); | |
18 | return; | |
19 | } | |
20 | UNSYNC(curfile); | |
53909d1e KM |
21 | retval = fscanf(curfile->fbuf, "%lf", &data); |
22 | if (retval == EOF) { | |
23 | ERROR(EPASTEOF, curfile->pfname); | |
24 | return; | |
25 | } | |
26 | if (retval == 0) { | |
a876201b KM |
27 | ERROR(EBADFNUM, curfile->pfname); |
28 | return; | |
29 | } | |
e5053b93 | 30 | curfile->funit &= ~EOLN; |
a876201b KM |
31 | curfile->funit |= SYNC; |
32 | return data; | |
33 | } |