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| author | Mark Dickinson <dickinsm@gmail.com> | 2009-04-18 13:58:18 +0000 |
|---|---|---|
| committer | Mark Dickinson <dickinsm@gmail.com> | 2009-04-18 13:58:18 +0000 |
| commit | 408e5fc144d187ed34e672280a017dcf2647ae3c (patch) | |
| tree | 4839f6bed76aaf48e12b98233d423ab64cf46d91 /Python/pymath.c | |
| parent | 5920b1c0dc0a8e9c4bfc3c1cca24be1003de688d (diff) | |
| download | cpython-408e5fc144d187ed34e672280a017dcf2647ae3c.tar.gz | |
Add check for C99 round function to configure, and define
a fallback function if round doesn't exist.
Diffstat (limited to 'Python/pymath.c')
| -rw-r--r-- | Python/pymath.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Python/pymath.c b/Python/pymath.c index 2e049be870..eb06eb2244 100644 --- a/Python/pymath.c +++ b/Python/pymath.c @@ -69,6 +69,19 @@ copysign(double x, double y) } #endif /* HAVE_COPYSIGN */ +#ifndef HAVE_ROUND +double +round(double x) +{ + double absx, y; + absx = fabs(x); + y = floor(absx); + if (absx - y >= 0.5) + y += 1.0; + return copysign(y, x); +} +#endif /* HAVE_ROUND */ + #ifndef HAVE_LOG1P #include <float.h> |