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support Android for current_zone()

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This commit is contained in:
Nicolas Dusart 2020-12-01 12:12:39 +01:00 committed by Howard Hinnant
parent 706b1286e8
commit f986299fbb
1 changed files with 16 additions and 0 deletions
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16
src/tz.cpp
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@ -92,6 +92,10 @@
# define TARGET_OS_SIMULATOR 0
#endif
#if defined(ANDROID) || defined(__ANDROID__)
#include <sys/system_properties.h>
#endif
#if USE_OS_TZDB
# include <dirent.h>
#endif
@ -4092,6 +4096,18 @@ tzdb::current_zone() const
if (!result.empty())
return locate_zone(result);
#endif
// Fall through to try other means.
}
{
// On Android, it is not possible to use file based approach either,
// we have to ask the value of `persist.sys.timezone` system property
#if defined(ANDROID) || defined(__ANDROID__)
char sys_timezone[PROP_VALUE_MAX];
if (__system_property_get("persist.sys.timezone", sys_timezone) > 0)
{
return locate_zone(sys_timezone);
}
#endif // defined(ANDROID) || defined(__ANDROID__)
// Fall through to try other means.
}
{