I need to open a file as std::fstream (or actually any other std::ostream) when file name is "Unicode" file name.
Under MSVC I have non-standard extension std::fstream::open(wchar_t const *,...)
? What can I do with other compilers like GCC (most important) and probably Borland compiler.
I know that CRTL provides _wfopen
but it gives C FILE *
interface instead of io-streams, maybe there is a non-standard way to create开发者_StackOverflow中文版 io-stream from FILE *
? Is there any boost::ifstream
with MSVC like extension for Windows?
Unfortunately, there's no standard way to do that, although C++0x (1x?) promises to do that. Until then, you properly assumed that a solution can be found in Boost, however, the library you're searching for is Boost.Filesystem.
Boost.Filesystem internally uses wide strings by default for its universal path system, so there are no unicode problems in this regard.
Currently there is no easy solution.
You need to create your own stream buffer that uses _wfopen
under the hood. You can use for this for example boost::iostream
Convert the Unicode filename to a char*
string using something like wcstombs()
or WideCharToMultiByte()
(which gives you far more control over the codepages involved).
Then use the converted filename to open the file.
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