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Re: missing description : error_category's destructor

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On 2012-03-20 07:22, Akira Takahashi wrote:
>  I found missing description. N3337 19.5.1.1 error_category:
>  virtual ~error_category() noexcept;
>
>  This function is nothing description.

I agree, because a virtual destructor is not covered by the general
statement in [functions.within.classes] p1.

>  Correct code is follow?
>  virtual ~error_category() noexcept = default;

Except for the explicit noexcept specification, yes. There is a general
normative statement in [res.on.exception.handling] p4

"Every destructor in the C++ standard library shall behave as if it had
a non-throwing exception specification."

which rules this already. This is the reason why *no* destructor
declaration in the library specification does have any noexcept
specification. Adding this suddenly at one place would make give the
impression that we have a special case here.

HTH&  Greetings from Bremen,

Daniel Krügler



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missing description : error_category's destructor Akira Takahashi <faithandbrave@gmail.com> - 2012-03-19 23:22 -0700
  Re: missing description : error_category's destructor Daniel Krügler<daniel.kruegler@googlemail.com> - 2012-03-21 08:42 -0700
    Re: missing description : error_category's destructor Akira Takahashi<faithandbrave@gmail.com> - 2012-03-21 11:36 -0700

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