On 27/04/2023 23:19, Robert Ramey via Boost wrote:

in boost/config/detail/suffix.hpp

I find this bit of code:

// // We can't have a working std::wstreambuf if there is no std::locale: // #  if defined(BOOST_NO_STD_LOCALE) && !defined(BOOST_NO_STD_WSTREAMBUF) #     define BOOST_NO_STD_WSTREAMBUF #  endif

and believe it or not. this is now causing me some issues.  Is the statement above true? Do we know that wide char streams cannot exist without std::locale being present?  Can anyone shed light on this?

As already mentioned, the original logic (and this dates back to C++98 or maybe even earlier!) was that there was a direct dependency between the "new" iostream operators and std::locale. I'm sure that for 99% of platforms this is redundant now anyway given that everyone supports wchar_t.  What's the specific issue this is causing? John.