[cfe-dev] Catching -fsanitize=integer generate error ?

[Brian Cain via cfe-dev]

You can use "UBSAN_OPTIONS=halt_on_error=1" in the environment to detect
the problem without letting execution continue.

Maybe you could use -fsanitize-trap=undefined and -ftrap=function?
http://clang.llvm.org/docs/UsersManual.html#cmdoption-ftrap-function



On Fri, Nov 6, 2015 at 6:34 AM, Stéphane Letz <cfe-dev at lists.llvm.org>
wrote:

> Hi,
>
> We are trying to use -fsanitize=integer to detect integer overflow errors.
> The message "runtime error: signed integer overflow" is generated, but is
> seems not as a catchable C++ exception. We would like to use try {…code
> that possibly overflow…. } catch (std::runtime_error& e) { } kind of code
> to handle the exception.
>
> It that possible? If not is there any alternative to detect integer
> overflow errors ?
>
> Thanks.
>
> Stéphane Letz
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>



-- 
-Brian
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