wcsicmp fails
Author
I'm trying to compare without taking into account the case of the characters, two russian strings, and the "_wcsicmp" function returns -2, which means different.
if(_wcsicmp(L"3 Мяч",L"3 мяч")!=0)
{
assert(0);
}
does anyone give me a hint?
Have you set the appropriate locale before making the comparison?
Doing this before the comparison makes it pass for me (apologies if this isn't the right locale setting, just guessing):
setlocale(LC_CTYPE, "rus");
Doing this before the comparison makes it pass for me (apologies if this isn't the right locale setting, just guessing):
setlocale(LC_CTYPE, "rus");
Author
That's terrible... How would I know that I need to set the locale? Nothing about that in MSDN and I thought that the wide string version are universal..
Thanks mattd.
Thanks mattd.
Quote:Original post by vladic2000x
That's terrible... How would I know that I need to set the locale? Nothing about that in MSDN and I thought that the wide string version are universal..
It does say in the MSDN:
Quote:Remarks
The _stricmp function lexicographically compares lowercase versions of string1 and string2 and returns a value indicating their relationship. _stricmp differs from _stricoll in that the _stricmp comparison is affected by LC_CTYPE, whereas the _stricoll comparison is according to the LC_CTYPE and LC_COLLATE categories of the current locale. For more information on the LC_COLLATE category, see setlocale and Locale Categories.
It's impossible to create a universal case insensitive comparison, since different languages have different rules for cases. For example, in some languages the upper case of ü is Ü, but in others it's UE.
Author
I appologize for criticizing the MSDN. Indeed it is written about what Evil Steve said. :)
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