double
_wcstod_r (struct _reent *ptr,
const wchar_t *nptr,
wchar_t **endptr)
{
return _wcstod_l (ptr, nptr, endptr, __get_current_locale ());
}
float
_wcstof_r (struct _reent *ptr,
const wchar_t *nptr,
wchar_t **endptr)
{
double retval = _wcstod_l (ptr, nptr, endptr, __get_current_locale ());
if (isnan (retval))
return nanf (NULL);
return (float)retval;
}
extern "C" long double _CRTIMP __cdecl _wcstold_l (
const wchar_t *nptr,
wchar_t **endptr,
_locale_t plocinfo
)
{
// delegate to wcstod since double and long double are
// both represented by 64 bits in this implementation
return _wcstod_l(nptr, endptr, plocinfo);
}
typename std::enable_if<std::is_same<CharT,wchar_t>::value,double>::type
operator()(const CharT* s, size_t) const
{
CharT *end = nullptr;
double val = _wcstod_l(s, &end, locale_);
if (s == end)
{
JSONCONS_THROW(json_runtime_error<std::invalid_argument>("Convert string to double failed"));
}
return val;
}
inline
double string_to_float(const std::wstring& s)
{
static _locale_t locale = _create_locale(LC_NUMERIC, "C");
const wchar_t* begin = &s[0];
wchar_t* end = const_cast<wchar_t*>(begin)+s.size();
double val = _wcstod_l(begin,&end,locale);
if (begin == end)
{
throw std::invalid_argument("Invalid float value");
}
return val;
}
