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Allow %H %M and %S to deal with negative durations

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Howard Hinnant
2018-04-23 20:31:28 -04:00
parent 88c661e9f3
commit a91ceefb4e
1 changed files with 16 additions and 0 deletions
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16
include/date/date.h
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@@ -4619,6 +4619,7 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
os.flags(std::ios::skipws | std::ios::dec);
os.width(0);
tm tm{};
bool insert_negative = fds.has_tod && fds.tod.to_duration() < Duration::zero();
#if !ONLY_C_LOCALE
auto& facet = use_facet<time_put<CharT>>(os.getloc());
#endif
@@ -4933,6 +4934,11 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (!fds.has_tod)
os.setstate(std::ios::failbit);
if (insert_negative)
{
os << '-';
insert_negative = false;
}
auto hms = fds.tod;
#if !ONLY_C_LOCALE
if (modified == CharT{})
@@ -5027,6 +5033,11 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (!fds.has_tod)
os.setstate(std::ios::failbit);
if (insert_negative)
{
os << '-';
insert_negative = false;
}
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
@@ -5167,6 +5178,11 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (!fds.has_tod)
os.setstate(std::ios::failbit);
if (insert_negative)
{
os << '-';
insert_negative = false;
}
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif