[Interest] Use QMetaEnum::keyCount() to initialise array

[Nikos Chantziaras]

On 19/12/2018 11:37, Konstantin Shegunov wrote:
> On Wed, Dec 19, 2018 at 11:22 AM Tom Isaacson <Tom.Isaacson at navico.com 
> <mailto:Tom.Isaacson at navico.com>> wrote:
> 
>     Is it possible to use QMetaEnum::keyCount() to initialise an array?
>     Something like:
> 
>          const QMetaEnum metaEnum = QMetaEnum::fromType<MyArray>();
>          int MyArray[metaEnum.keyCount()];
> 
> constQMetaEnummetaEnum=QMetaEnum::fromType<Qt::Alignment>();
> 
> intMyArray[metaEnum.keyCount()];
> 
> Compiles for me (with g++ 8.2,-std=gnu++11 which is expanded from CONFIG+=c++11).

Unfortunately, that's a variable length array, which is a GNU extension.