Saleem Abdulrasool 9847cab8d3 stdlib: change the console to UTF-8 on start ...

This adjusts the Windows console to switch the codepage to UTF-8.  This
is important as the default codepage (CP437) does not allow for UTF-8
output, but expects ASCII.  However, strings in Swift are assumed to be
UTF-8, which means that there is now a conversion mismatch.

Because the console mode persists beyond the duration of the application
as it is state local to the console and not the C runtime, we should
restore the state of the console before termination.  We do this by
registering a termination handler via `atexit`.  This means that an
abnormal termination (e.g. via `fatalError`) will irrevocably alter the
state of the console (interestingly enough, `chcp` will still report the
original console codepage even though the console will internally be set
to UTF-8).

Fixes: SR-13807

2021-12-20 07:14:01 -08:00

2.0 KiB

Raw Blame History

View Raw