S. B. Tam

I think this is a duplicate of #140.

A chrono conversion specifier must start with `%` (byte 0x25), and `%` isn't used as a non-lead-byte in any supported multibyte encoding (unlike `{` and `}`). So I think no...

> My proposal(as this is only source breaking thing) is to make a preprocessor define(documented), which people would be able to use to restore the non-conforming behavior so the migration...

can you run `set INCLUDE` and `set WindowsSdkDir` and paste the output here?

Hmm, the SDK dir seems fine. The content of `INCLUDE` is truncated so I can't see whether it contains the SDK dir. (It should contain `D:\Windows Kits\10\include\10.0.22621.0\ucrt;D:\Windows Kits\10\\include\10.0.22621.0\\um;D:\Windows Kits\10\\include\10.0.22621.0\\shared`, among...

> Does stl internal implementation need locking? Yes, locking is needed for iterator debugging.

> `wcrtomb`/`mbrtowc` are simply broken for anything outside the Unicode BMP because they just die with EILSEQ if the character doesn't fit in UCS-2 Just curious, can you name an...

> Feature-test macro (expected - ⚠️ WG21 editors have raised concerns about its length and it may be renamed ⚠️): > > ```c++ > #define __cpp_lib_default_template_type_for_algorithm_values 202403L > ``` They...

`__reference_converts_from_temporary` has been implemented in Clang 19 (https://github.com/llvm/llvm-project/commit/2dbe89d15046bedcc36a5de1242e20aa91a5e598).

Note that `/permissive-` is the default for C++20 and newer.