Re: [PATCH v2 0/3] MR6680: msvcp140: Use current locale to convert path in _Fiopen.

[Piotr Caban (＠piotr)]

Piotr Caban (@piotr) commented about dlls/msvcp120/tests/msvcp120.c:
> }
>  }
>
> +static void test__Fiopen(void)
> +{
> +    int i;
> +    FILE *f;
> +    char *oldloc;
> +    static const struct {
> +        const char *loc;
> +        const WCHAR *wpath;
> +        const char *apath;
> +    } tests[] = {
> +        { "C",     L"utf_\x00e4\x00cf\x00f6\x00df.txt", "utf_\xe4\xcf\xf6\xdf.txt" },
> +        { "de_DE", L"utf_\x00e4\x00cf\x00f6\x00df.txt", "utf_\xe4\xcf\xf6\xdf.txt" },

The implementation uses CP_ACP to convert between wchar and char version. You will need to do the same in the tests, otherwise the tests may fail depending on system settings.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/6680#note_85479