Hello, My recent patch series provided new implementation for C95 conversion functions, but currently they are only used for pre-msvcr80.dll CRTs. I think we could move forward to use them for msvcr80.dll and later, and UCRT.
The motivations for this patch series were: 1. Provide replacements for `wctob` and `btowc` functions which have consistent behavior with `wcrtomb` and `mbrtowc` functions respectively. (done) 2. Fix return value of `mbrlen` and `mbrtowc` functions when converting from DBCS code pages such as 932 (Japanese), 949 (Korean), 936 and 950 (Chinese). To implement second part for UCRT, we would need to call these functions when converting from SBCS or DBCS code pages. However, we cannot use these functions to perform conversion from/to UTF-8. Some time ago, I have mentioned in another thread that return value of CRT's `mbrlen` and `mbrtowc` is correct when converting from UTF-8. This means we can call the replacements when MB_CUR_MAX <= 2 (SBCS and DBCS code pages), and call CRT's versions otherwise (I think it is safe to assume UTF-8 in case MB_CUR_MAX > 2). I am not sure what would be a clean way to do it. We need to call `LoadLibrary` to obtain UCRT's handle and call `GetProcAddress` to get address of CRTs versions so we can call them conditionally. Would it be appropriate to define a function with `attribute(constructor)` to achieve this or is there a better approach? Also, would it be safe to call `LoadLibrary` from such function? - Kirill Makurin _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
