importc: add alignof macro

[ryuukk]

It's valid C11: https://en.cppreference.com/w/c/language/_Alignof

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[dkorpel]

Going off the link you gave, _Alignof is C11, and alignof is a convenience macro in stdalign.h. However, you add alignof directy to importc.h. I think that should be _Alignof, alignof should only work when stdalign.h is included.

[ryuukk]

Done, i also added __alignof, i got that one when using the clang preprocessor on windows

[thewilsonator]

it seems dmd already handles this https://github.com/dlang/dmd/blob/master/src/dmd/cparse.d#L900 please determine if this is still needed (e.g. for __alignof)

[ryuukk]

it seems dmd already handles this https://github.com/dlang/dmd/blob/master/src/dmd/cparse.d#L900 please determine if this is still needed (e.g. for __alignof)

I might have an outdated version of dmd, i'll try with latest master changes

Change was implemented

[RazvanN7]

@ryuukk any progress?

[RazvanN7]

Adding the 72h no response -> close label.

[ljmf00]

Remove this