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Handle fractional seconds and offsets better.

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Howard Hinnant
2016-08-08 18:25:17 -04:00
parent 137c317cc6
commit 77435397cb
1 changed files with 41 additions and 7 deletions
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48
tz.h
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@@ -1600,10 +1600,35 @@ parse(std::basic_istream<CharT, Traits>& is,
} }
if (ratio_less<typename Duration::period, ratio<1>>::value) if (ratio_less<typename Duration::period, ratio<1>>::value)
{ {
double s; CharT decimal_point =
is >> s; use_facet<numpunct<CharT>>(is.getloc()).decimal_point();
if (!is.fail()) string buf;
subseconds = round<Duration>(duration<double>{s}); while (true)
{
auto k = is.peek();
if (Traits::eq_int_type(k, Traits::eof()))
break;
if (k == decimal_point)
{
buf += '.';
is.get();
}
else
{
auto c = static_cast<char>(Traits::to_char_type(k));
if (isdigit(c))
{
buf += c;
is.get();
}
else
{
break;
}
}
};
if (!buf.empty())
subseconds = round<Duration>(duration<double>{stod(buf)});
else else
err |= ios_base::failbit; err |= ios_base::failbit;
} }
@@ -1628,16 +1653,25 @@ parse(std::basic_istream<CharT, Traits>& is,
if (!is.fail() && (sign == '+' || sign == '-')) if (!is.fail() && (sign == '+' || sign == '-'))
{ {
char h1, h0, m1, m0; char h1, h0, m1, m0;
char colon = '\0'; char colon = ':';
h1 = static_cast<char>(is.get()); h1 = static_cast<char>(is.get());
h0 = static_cast<char>(is.get()); h0 = static_cast<char>(is.get());
if (modified) if (modified)
colon = static_cast<char>(is.get()); {
if (h0 == ':')
{
colon = h0;
h0 = h1;
h1 = '0';
}
else
colon = static_cast<char>(is.get());
}
m1 = static_cast<char>(is.get()); m1 = static_cast<char>(is.get());
m0 = static_cast<char>(is.get()); m0 = static_cast<char>(is.get());
if (!is.fail() && std::isdigit(h1) && std::isdigit(h0) if (!is.fail() && std::isdigit(h1) && std::isdigit(h0)
&& std::isdigit(m1) && std::isdigit(m0) && std::isdigit(m1) && std::isdigit(m0)
&& (!modified || colon == ':')) && colon == ':')
{ {
temp_offset = 10*hours{h1 - '0'} + hours{h0 - '0'} + temp_offset = 10*hours{h1 - '0'} + hours{h0 - '0'} +
10*minutes{m1 - '0'} + minutes{m0 - '0'}; 10*minutes{m1 - '0'} + minutes{m0 - '0'};