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Eliminate dependence on OS's timegm / _mkgmtime

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Apple's OS timegm has a 32 bit bug meaning it can't parse dates earlier
than 1901-12-13 20:45:52.
This commit is contained in:
Howard Hinnant
2016-08-28 14:26:22 -04:00
parent 3e25bd45f7
commit 7816c3b48f
1 changed files with 6 additions and 6 deletions
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12
date.h
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@@ -4286,12 +4286,12 @@ parse(std::basic_istream<CharT, Traits>& is,
f.get(is, 0, is, err, &tm, b, e); f.get(is, 0, is, err, &tm, b, e);
if ((err & ios_base::failbit) == 0) if ((err & ios_base::failbit) == 0)
{ {
#ifdef _WIN32 using namespace std::chrono;
auto tt = _mkgmtime(&tm); tp = floor<Duration>(sys_days{year{tm.tm_year + 1900}/
#else (tm.tm_mon+1)/
auto tt = timegm(&tm); (tm.tm_mday)} +
#endif hours{tm.tm_hour} + minutes{tm.tm_min} +
tp = floor<Duration>(system_clock::from_time_t(tt) + subseconds); seconds{tm.tm_sec} + subseconds);
abbrev = std::move(temp_abbrev); abbrev = std::move(temp_abbrev);
offset = temp_offset; offset = temp_offset;
} }