Re: [PATCH 5/9] build: reject C++ compilers that don't support std::vector::data

[Akim Demaille]

Hi Hans,

> Le 13 août 2021 à 09:52, Hans Åberg <haberg-1@telia.com> a écrit :
> 
>> On 13 Aug 2021, at 08:11, Akim Demaille <akim.demaille@gmail.com> wrote:
>> 
>>> Le 12 août 2021 à 10:40, Hans Åberg <haberg-1@telia.com> a écrit :
>>> 
>>> The member 'data' was introduced in C++11.
>>> 
>>> https://en.cppreference.com/w/cpp/container/vector/data
>> 
>> That page is exactly the one I looked at first to see that it's C++98, not 
>> C++11.  Read the bottom of 
>> <https://en.cppreference.com/w/cpp/container/vector>.
> 
> It is not in the C++98 ISO+IEC+14882-1998 standard (the PDF). In the C++11 
> n3242 draft, in sec. 23.3.6.1 Class template vector overview, class vector 
> has between sections "element access" and "modifiers" a section "data access" 
> with
>  T* data() noexcept; const
>  T* data() const noexcept
> and it is also in a C++ draft standard I made from sources in 2015.
> 
> So GCC is right on this one, and 4.2 is from 2007-2008, before C++11. You 
> might try a later version with the -std=c++98 option to see what it does.

You need to read my answer, and the page it pointed you to.

Cheers!