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From: Andrea Bocci <andrea.bocci@cern.ch>
To: <gcc-help@gcc.gnu.org>
Subject: Warn about conversion from floating point to integers
Date: Sat, 20 Aug 2022 11:21:50 +0200	[thread overview]
Message-ID: <CAAK6D=7L4J3o6_WutEKvTt2WhJNXCfywz-1_0mErboywbRp2Hw@mail.gmail.com> (raw)

Hi,

is there a way to ask GCC to produce a warning when there is a conversion
from a floating point type (float or double) to an integer type (char,
short, int, long, etc.), but not when there is a conversion from double to
float ?

The reason is that we often do computations in double precision and store
the result in single precision, so I'd rather not warn about that.

-Wconversion warns about both kinds and more.
-Wfloat-conversion warns about both kinds.

Thank you for any advice,
.Andrea

-- 

Dr. Andrea Bocci
Applied Physicist, CMS Experiment
<https://cms.cern/>EP-CMD, CERN
<https://home.cern/>168990 (+41 75 411 8990)
CERN 40/1-B01 <https://maps.cern.ch/mapsearch/mapsearch.htm?n=['40/1-B01']>
E27810

Esplanade des particules, 1, CH-1211 Geneve 23, Switzerland
<https://goo.gl/maps/AMjHdhXzYk2itSu7A>

             reply	other threads:[~2022-08-20  9:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-20  9:21 Andrea Bocci [this message]
2022-08-22 17:32 ` Segher Boessenkool
2022-08-22 19:27   ` Andrea Bocci
2022-08-22 19:43     ` Jonathan Wakely
2022-08-22 19:48       ` Andrea Bocci
2022-08-22 23:01         ` Segher Boessenkool
2022-08-22 23:39           ` Jeff Law

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