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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)
{
double s;
is >> s;
if (!is.fail())
subseconds = round<Duration>(duration<double>{s});
CharT decimal_point =
use_facet<numpunct<CharT>>(is.getloc()).decimal_point();
string buf;
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
err |= ios_base::failbit;
}
@@ -1628,16 +1653,25 @@ parse(std::basic_istream<CharT, Traits>& is,
if (!is.fail() && (sign == '+' || sign == '-'))
{
char h1, h0, m1, m0;
char colon = '\0';
char colon = ':';
h1 = static_cast<char>(is.get());
h0 = static_cast<char>(is.get());
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());
m0 = static_cast<char>(is.get());
if (!is.fail() && std::isdigit(h1) && std::isdigit(h0)
&& std::isdigit(m1) && std::isdigit(m0)
&& (!modified || colon == ':'))
&& colon == ':')
{
temp_offset = 10*hours{h1 - '0'} + hours{h0 - '0'} +
10*minutes{m1 - '0'} + minutes{m0 - '0'};