redundant(?) double static_cast

[danra]

The following:
int a = (int)1.0;

translates into
int a = static_cast<int>(static_cast<int>(1.0));

See https://cppinsights.io/lnk?code=aW50IG1haW4oKQp7CiAgCWludCBhID0gKGludCkxLjA7Cn0=&std=cpp17&rev=1.0

AFAICS there is a redundant static_cast<int> here - unless this is what the compiler actually does internally (for some reason?)

[andreasfertig]

Hello @danra,

I believe what C++ Insights shows is correct. Have a look here: https://godbolt.org/z/FC_pXU. It shows the AST output of your example and a second version with the C-Style-Cast. In C++ Insights the second version leads to only one static_cast. I assume the compiler does optimize this away in a later stage.

Andreas