Author: Armin Rigo <[email protected]>
Branch:
Changeset: r49030:165672fb2aef
Date: 2011-11-09 17:54 +0100
http://bitbucket.org/pypy/pypy/changeset/165672fb2aef/
Log: Copy the logic for math.fmod() from CPython 2.7.
diff --git a/pypy/rpython/lltypesystem/module/ll_math.py
b/pypy/rpython/lltypesystem/module/ll_math.py
--- a/pypy/rpython/lltypesystem/module/ll_math.py
+++ b/pypy/rpython/lltypesystem/module/ll_math.py
@@ -223,13 +223,21 @@
def ll_math_fmod(x, y):
- if isinf(x) and not isnan(y):
- raise ValueError("math domain error")
+ # fmod(x, +/-Inf) returns x for finite x.
+ if isinf(y) and isfinite(x):
+ return x
- if y == 0:
- raise ValueError("math domain error")
-
- return math_fmod(x, y)
+ _error_reset()
+ r = math_fmod(x, y)
+ errno = rposix.get_errno()
+ if isnan(r):
+ if isnan(x) or isnan(y):
+ errno = 0
+ else:
+ errno = EDOM
+ if errno:
+ _likely_raise(errno, r)
+ return r
def ll_math_hypot(x, y):
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