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Template zoned_time on TimeZonePtr

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* TimeZonePtr defaults to const time_zone*.
* Adjust template deduction guides and make_zoned.
* Add HAS_STRING_VIEW
This commit is contained in:
Howard Hinnant
2017-08-12 17:41:55 -04:00
parent 07ada69385
commit d4d6eda861
2 changed files with 346 additions and 141 deletions
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tz.cpp
+17 -1
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@@ -3346,10 +3346,18 @@ get_tzdb()
}
const time_zone*
#if HAS_STRING_VIEW
TZ_DB::locate_zone(std::string_view tz_name) const
#else
TZ_DB::locate_zone(const std::string& tz_name) const
#endif
{
auto zi = std::lower_bound(zones.begin(), zones.end(), tz_name,
#if HAS_STRING_VIEW
[](const time_zone& z, const std::string_view& nm)
#else
[](const time_zone& z, const std::string& nm)
#endif
{
return z.name() < nm;
});
@@ -3357,7 +3365,11 @@ TZ_DB::locate_zone(const std::string& tz_name) const
{
#if !USE_OS_TZDB
auto li = std::lower_bound(links.begin(), links.end(), tz_name,
#if HAS_STRING_VIEW
[](const link& z, const std::string_view& nm)
#else
[](const link& z, const std::string& nm)
#endif
{
return z.name() < nm;
});
@@ -3372,13 +3384,17 @@ TZ_DB::locate_zone(const std::string& tz_name) const
return &*zi;
}
#endif // !USE_OS_TZDB
throw std::runtime_error(tz_name + " not found in timezone database");
throw std::runtime_error(std::string(tz_name) + " not found in timezone database");
}
return &*zi;
}
const time_zone*
#if HAS_STRING_VIEW
locate_zone(std::string_view tz_name)
#else
locate_zone(const std::string& tz_name)
#endif
{
return get_tzdb().locate_zone(tz_name);
}