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* About u8filebuf u16filebuf u32filebuf, undocumented features?
@ 2020-12-06 10:09 sotrdg sotrdg
  0 siblings, 0 replies; only message in thread
From: sotrdg sotrdg @ 2020-12-06 10:09 UTC (permalink / raw)
  To: libstdc++

Did I find out a hidden feature inside libstdc++?

i tried to use

std::basic_filebuf<char8_t>
std::basic_filebuf<char16_t>
std::basic_filebuf<char32_t>

It does not look like C++ fstream supports char8_t char16_t char32_t.

However, my fast_io library supports formatted i/o for char8_t char16_t and char32_t. I tried them with fast_io's facilitiea and they work perfectly fine, with codecvt to locale encoding char set.

https://github.com/expnkx/fast_io/blob/f6efd9dc1c3f4915e0e9ee48d884c682157a9121/include/fast_io_legacy_impl/cpp/filebuf_file.h#L173


Are they undocumented standard library features?
Should i use them without worrying about some other standard library implementations do not support them?

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2020-12-06 10:09 About u8filebuf u16filebuf u32filebuf, undocumented features? sotrdg sotrdg

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