Mercurial > cpython-lru_cache-weakref
diff Modules/mathmodule.c @ 44947:8e435bdd4bc8 legacy-trunk
setup.py doesn't pick up changes to a header file
| author | Christian Heimes <christian@cheimes.de> |
|---|---|
| date | Fri, 25 Jan 2008 14:54:23 +0000 |
| parents | 12099143724f |
| children | 492b302aded6 |
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--- a/Modules/mathmodule.c Fri Jan 25 12:18:43 2008 +0000 +++ b/Modules/mathmodule.c Fri Jan 25 14:54:23 2008 +0000 @@ -240,11 +240,11 @@ "math domain error"); return NULL; } - /* Value is ~= x * 2**(e*SHIFT), so the log ~= - log(x) + log(2) * e * SHIFT. - CAUTION: e*SHIFT may overflow using int arithmetic, + /* Value is ~= x * 2**(e*PyLong_SHIFT), so the log ~= + log(x) + log(2) * e * PyLong_SHIFT. + CAUTION: e*PyLong_SHIFT may overflow using int arithmetic, so force use of double. */ - x = func(x) + (e * (double)SHIFT) * func(2.0); + x = func(x) + (e * (double)PyLong_SHIFT) * func(2.0); return PyFloat_FromDouble(x); }