c++ - std::wstring (from wifstream), spec. chars -

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i need std::wstring, std::wifstream, wifstream contains, special characters, such as: ä,ê

and, on.

i have code

wifstream *infile = new wifstream(szfile);  std::wstring szwfilestr((std::istreambuf_iterator<wchar_t>(*infile)),std::istreambuf_iterator<wchar_t>());

but, not read in special characters, hoping would

e.g., file contains characters, such ä, , ê, , turn out 

ö

i think, in file, utf-8.

any ideas, one? :)


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