[PATCH 3/3] msvcrt: Make wcstoi64 support various Unicode digits.

Lauri Kenttä lauri.kentta at gmail.com
Wed Dec 14 08:45:34 CST 2016


On 2016-12-14 12:23, Henri Verbeet wrote:
> On 13 December 2016 at 19:48, Lauri Kenttä <lauri.kentta at gmail.com> 
> wrote:
>> @@ -2027,6 +2027,19 @@ static int wctoint(WCHAR c, int base)
>>          v = c - 'A' + 10;
>>      else if ('a' <= c && c <= 'z')
>>          v = c - 'a' + 10;
>> +    else {
>> +        /* Unicode points that contain digits 0-9; keep this sorted! 
>> */
>> +        static const WCHAR zeros[] = {
>> +            0x660, 0x6f0, 0x966, 0x9e6, 0xa66, 0xae6, 0xb66, 0xc66, 
>> 0xce6,
>> +            0xd66, 0xe50, 0xed0, 0x1040, 0x17e0, 0x1810, 0xff10
>> +        };
>> +        int i;
>> +        for (i = 0; i < sizeof(zeros)/sizeof(zeros[0]) && c >= 
>> zeros[i]; ++i) {
>> +            if (zeros[i] <= c && c < zeros[i] + base) {
> Using "base" here seems questionable. That would imply that e.g. with
> base 16, "\x6f2\x6fa"/"۲ۺ" would return "42". Is that really the case?

My bad, I've "optimized out" the missing c < zeros[i] + 10.

> For what it's worth, note also that Wine has wine_fold_string(), which
> should be consistent with FoldString().

I don't see what FoldString could do here.

-- 
Lauri Kenttä



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