Re: [Mingw-w64-public] [PATCH 1/2] crt: Add missing check for negative return value from WideCharToMultiByte() in __mingw_wcrtomb_cp

[Kirill Makurin]

> -  if (ret == 0 || ret > mb_cur_max || defaultCharacterUsed) {
> +  if (ret <= 0 || ret > mb_cur_max || defaultCharacterUsed) {
>      goto eilseq;
>    }

Does WideCharToMultiByte ever return negative values? Microsoft docs only 
mention zero as return value on error.

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