Mercurial > cpython-lru_cache-weakref
annotate Python/fmod.c @ 16845:09dcf5ebcd80 legacy-trunk
Now that Jeremy is asking about this code, it looks really bogus to me,
so let's rip it out. The constructor for SyntaxError does the right
thing, so we do not need to do it again.
| author | Fred Drake <fdrake@acm.org> |
|---|---|
| date | Wed, 28 Feb 2001 20:58:04 +0000 |
| parents | 6f6f965c5e2d |
| children | 2dea40e40d9d |
| rev | line source |
|---|---|
| 145 | 1 |
| 6 | 2 /* Portable fmod(x, y) implementation for systems that don't have it */ |
| 3 | |
| 2434 | 4 #include "config.h" |
| 5 | |
|
13761
59f8cedcf049
merge Include/my*.h into Include/pyport.h
Peter Schneider-Kamp <nowonder@nowonder.de>
parents:
13256
diff
changeset
|
6 #include "pyport.h" |
| 6 | 7 #include <errno.h> |
| 8 | |
| 9 double | |
| 2434 | 10 fmod(double x, double y) |
| 6 | 11 { |
| 12 double i, f; | |
| 13 | |
| 14 if (y == 0.0) { | |
| 15 errno = EDOM; | |
| 16 return 0.0; | |
| 17 } | |
| 18 | |
| 19 /* return f such that x = i*y + f for some integer i | |
| 20 such that |f| < |y| and f has the same sign as x */ | |
| 21 | |
| 22 i = floor(x/y); | |
| 23 f = x - i*y; | |
| 24 if ((x < 0.0) != (y < 0.0)) | |
| 25 f = f-y; | |
| 26 return f; | |
| 27 } |