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* Fix <uchar.h> in for C++11.ed2013-05-251-3/+10
| | | | | | | | | | | It turns out that in C++11, char16_t and char32_t are built-in types; language keywords. Just fix this by putting traditional _*_T_DECLARED blocks around the definitions. We'll just predefine these in <sys/_types.h>. This also opens up the possibility to define char16_t in other header files, if ever needed (e.g. if we would gain a <ctype.h> for char16_t/char32_t).
* Add <uchar.h>.ed2013-05-211-0/+60
The <uchar.h> header, part of C11, adds a small number of utility functions for 16/32-bit "universal" characters, which may or may not be UTF-16/32. As our wchar_t is already ISO 10646, simply add light-weight wrappers around wcrtomb() and mbrtowc(). While there, also add (non-yet-standard) _l functions, similar to the ones we already have for the other locale-dependent functions. Reviewed by: theraven
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