...If `writeln` only supported strings, or required opt-in to string conversion (i.e. erroring...

...include/clang-c/Index.h:20,
                 from /opt/d/D/c2d/src/c2di.c:1...

...function calls (ignoring the fact that its opt-in).

Borrow checkers need to be able...

...we'd make all the safety stuff opt-in, because it adds complexity but in...

...that are enabled together, and that modules opt into an Edition. Because every Edition starts...

...should not be the default, instead being opt-in like say through an `implicit this...

...s C++. But at least you can opt out with `explicit` most of the time...

...had been that editions were to be opt-in to avoid breakage. The default would...

...themselves.
Field reordering should *at least* be opt-in, but I’d argue that it’s not...

...command-line-argument]
clang: warning: -Wl,-rpath,/opt/compiler-explorer/gcc-13.2.0/lib64...