Format the specified args according to the specification given by the specified fmtStr in the locale of the specified loc and return the result. In the event of an error throw the exception format_error.
Declared in <bslfmt_format.h>
template<class... t_ARGS>
bsl::wstring
format(
std::locale const& loc,
wformat_string<t_ARGS...> fmtStr,
t_ARGS&&... args);