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ICU-444 update comments

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X-SVN-Rev: 11765
This commit is contained in:
Alan Liu 2003-05-02 00:11:32 +00:00
parent e914485397
commit 0591810bee
1 changed files with 6 additions and 13 deletions
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19
icu4c/source/i18n/timezone.cpp
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@ -392,21 +392,16 @@ TimeZone::initDefault()
Mutex lock;
uprv_tzset(); // Initialize tz... system data
// get the timezone ID from the host.
// Get the timezone ID from the host. This function should do
// any required host-specific remapping; e.g., on Windows this
// function maps the Date and Time control panel setting to an
// ICU timezone ID.
hostID = uprv_tzname(0);
// Invert sign because UNIX semantics are backwards
rawOffset = uprv_timezone() * -U_MILLIS_PER_SECOND;
}
// Try to create a system zone with the given ID. This
// _always fails on Windows_ because Windows returns a
// non-standard localized zone name, e.g., "Pacific
// Standard Time" on U.S. systems set to PST. One way to
// fix this is to add a Windows-specific mapping table,
// but that means we'd have to do so for every locale. A
// better way is to use the offset and find a
// corresponding zone, which is what we do below.
TimeZone* default_zone = createSystemTimeZone(hostID);
// If we couldn't get the time zone ID from the host, use
@ -543,8 +538,7 @@ public:
* conditions. We currently just let that be the
* lexicographically first zone, but we could also adjust the list
* to pick which zone was first for this situation -- probably not
* worth the trouble, except for the fact that this fallback is
* _always_ used to determine the default zone on Windows.
* worth the trouble.
*
* The list of zones is actually just a list of integers, from
* 0..n-1, where n is the total number of system zones. The
@ -756,8 +750,7 @@ TimeZone::createAvailableIDs(int32_t rawOffset, int32_t& numIDs)
* conditions. We currently just let that be the
* lexicographically first zone, but we could also adjust the list
* to pick which zone was first for this situation -- probably not
* worth the trouble, except for the fact that this fallback is
* _always_ used to determine the default zone on Windows.
* worth the trouble.
*
* The list of zones is actually just a list of integers, from
* 0..n-1, where n is the total number of system zones. The