bool
P::utf8Support (const std::ostream& o)
{
string name = o.getloc().name();
return (name.find ("UTF-8") != string::npos
|| name.find ("utf-8") != string::npos);
}
void float2string(std::ostream& os, float value)
{
#ifdef SEXP_USE_CXX17
constexpr size_t len = std::numeric_limits<float>::digits10 + 1;
char buffer[len];
auto result = std::to_chars(buffer, buffer + len, value);
assert(result.ec == std::errc());
os.write(buffer, result.ptr - buffer);
#else
auto precision = os.precision(std::numeric_limits<float>::digits10 + 1);
# ifdef SEXP_USE_LOCALE
const auto& loc = os.getloc();
os.imbue(std::locale::classic());
os << value;
os.imbue(loc);
# else
os << value;
# endif
os.precision(precision);
#endif
}
void to_title::operator()(std::ostream &out) const
{
out << locale::to_title(obj_.get(out),out.getloc());
}
void to_upper::operator()(std::ostream &out) const
{
std::string tmp =obj_.get(out) ;
std::locale loc = out.getloc();
out << ::cppcms::locale::to_upper( tmp,loc);
}