nothrow by default

Paulo Pinto pjmlp at
Thu Jan 9 13:45:44 UTC 2020

On Thursday, 9 January 2020 at 13:26:36 UTC, Ola Fosheim Grøstad 
> On Thursday, 9 January 2020 at 10:32:25 UTC, Jonathan M Davis 
> wrote:
>> On Wednesday, January 8, 2020 11:26:41 PM MST Walter Bright 
>> via Digitalmars- d wrote:
>>> I'm aware that C++ is moving away from exceptions. I've been 
>>> unhappy with exceptions for some time now (DMD doesn't use 
>>> them for performance reasons), and C++ has evidently come to 
>>> the same conclusion.
>>> I expect that exceptions will soon become a legacy feature.
>> I would really hope not. IMHO, they are usually by far the 
>> best way to handle error conditions in a program. Anything 
>> else results in you having to deal with the various possible 
>> error conditions when the function returns, which is _far_ 
>> more unwieldy and much more error-prone. It also doesn't work 
>> well with function call chaining.
> I doubt Stroustrup will let that happen. Highly unlikely 
> scenario.
> Not sure why anyone would think that exceptions are gone just 
> because some want to enable compilers configured to compile 
> without exceptions to use more library containers (like 
> std::vector)?
>  C++17 certainly introduced new exceptions 
> (std::filesystem::filesystem_error), and I believe more C++ 
> setups enable exceptions today than a decade ago. For good 
> reasons.
> No need to avoid exceptions in the whole program just because 
> you don't want them in som specific locations (like render 
> code).
> Whole program analysis and inter-procedural analysis should be 
> able to take care of it.

Unfortunately Stroustrup only has its own vote and lobbying in 
what concerns C++'s future, hence his set of advocacy papers 
regarding C++'s roadmap.

As posted in another comment, C++/WinRT and Android NDK are two 
such C++ setups.

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