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bpo-31373: fix undefined floating-point demotions#3396

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benjaminp merged 1 commit intomasterfrom
benjamin-undefined-downcast
Sep 7, 2017
Merged

bpo-31373: fix undefined floating-point demotions#3396
benjaminp merged 1 commit intomasterfrom
benjamin-undefined-downcast

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@benjaminp benjaminp commented Sep 6, 2017 •
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@benjaminp benjaminp requested a review from vstinner September 6, 2017 22:26
@benjaminp benjaminp force-pushed the benjamin-undefined-downcast branch from d15a9ef to 60ec3e7 Compare September 6, 2017 23:15
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Comment thread Misc/NEWS.d/next/Core and Builtins/2017-09-06-15-25-59.bpo-31373.dC4jd4.rst Outdated
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@vstinner vstinner Sep 6, 2017

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You are not supposed to commit this part :-)

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@benjaminp benjaminp Sep 6, 2017

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hmm, blurb hiccup I guess

Comment thread Python/getargs.c Outdated
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@vstinner vstinner Sep 6, 2017

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I would prefer to use FLT_MIN.

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@benjaminp benjaminp Sep 6, 2017

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FLT_MIN is the smallest nonnegative float not what we want here.

Comment thread Objects/floatobject.c Outdated
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I would be more confident with an assert(sizeof(float) == 4); just in case.

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@benjaminp benjaminp Sep 6, 2017

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This code only executes if floats are in IEE754 format and are therefore 4 bytes.

Comment thread Objects/floatobject.c Outdated
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@vstinner vstinner Sep 6, 2017

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I don't understand why you remove Py_IS_INFINITY(y).

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@benjaminp benjaminp Sep 6, 2017

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y is no longer defined at this point.

Comment thread Include/pymath.h Outdated
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@vstinner vstinner Sep 6, 2017

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I suggest to put "Type" in the macro names. Maybe _Py_IsTypeSigned(type), _Py_TypeMax(), etc.?

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@benjaminp benjaminp Sep 6, 2017

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sg

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_Py_IsInTypeRange(type, v)?

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bedevere-bot commented Sep 6, 2017

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I didn't expect the Spanish Inquisition!. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

@benjaminp benjaminp force-pushed the benjamin-undefined-downcast branch 5 times, most recently from 7e4b497 to 4d7578b Compare September 7, 2017 02:21
@benjaminp benjaminp force-pushed the benjamin-undefined-downcast branch from 4d7578b to c120b8b Compare September 7, 2017 02:33
@benjaminp benjaminp merged commit a853a8b into master Sep 7, 2017
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miss-islington commented Sep 7, 2017

🐍🍒⛏🤖 Thanks @benjaminp for the PR, and @benjaminp for merging it 🌮🎉.I'm working now to backport this PR to: 3.6.

@benjaminp benjaminp deleted the benjamin-undefined-downcast branch September 7, 2017 18:14
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Sep 7, 2017
@benjaminp @miss-islington
[3.6] bpo-31373: fix undefined floating-point demotions (pythonGH-3396)
f772e11 
(cherry picked from commit a853a8b)
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bedevere-bot commented Sep 7, 2017

GH-3424 is a backport of this pull request to the 3.6 branch.

benjaminp pushed a commit that referenced this pull request Sep 7, 2017
@miss-islington @benjaminp
[3.6] fixes bpo-31373: fix undefined floating-point demotions (GH-3396)…
b036232 
… (#3424)

(cherry picked from commit a853a8b)
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