Re: Core dump constructing a C++ string with NULL

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On 13 January 2011 19:56, Tom Browder wrote:
> It would be nice if this would construct an empty string:
>
>  #include <string>
>  std::string s(0);
>
> At the moment that gives a core dump.

Not if you catch the exception.

> Is that defined behavior according to the standard?

basic_string(const charT* s, const Allocator& a = Allocator());
9        Requires: s shall not be a null pointer.

> If not, what about a g++ enhancement?

We throw an exception, as a gnu extension:

terminate called after throwing an instance of 'std::logic_error'
  what():  basic_string::_S_construct NULL not valid
Aborted (core dumped)




> Thanks.
>
> Regards.
>
> -Tom
>
> Thomas M. Browder, Jr.
> Niceville, Florida
> USA
>



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