[Interest] Operator QMap<uint, uint>[] is casting to int?

Thiago Macieira thiago.macieira at intel.com
Tue May 7 19:11:36 CEST 2019

On Tuesday, 7 May 2019 05:13:33 PDT Ola Røer Thorsen wrote:
> lør. 4. mai 2019 kl. 17:51 skrev Thiago Macieira <thiago.macieira at intel.com
> > No, the size of something definitely fits in int on 32-bit systems. And
> > why do
> > you need to do any static_cast in the first place?
> We build our code using gcc with the options "-Wall -Wextra -Werror" and
> this leads us to have to use static_cast for example when comparing int and
> unsigned int (or std::size_t). A mix of using std::array, std::string and
> QVector/QByteArray often gives a few extra static casts, not that it
> bothers me too much.

Well, that's your problem: mixing the APIs. The committee has recognised that 
it should have used signed types, but it can't change now.

If there's ever an STL2 (std2 namespace), it'll use signed.

Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel System Software Products

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