BloombergLP::baltzo::ZoneinfoUtil::isWellFormed

Declared in <baltzo_zoneinfoutil.h>

Return true if the specified timeZone is a well‐formed Zoneinfo object (which can be used by other methods on this utility), and false otherwise. For a Zoneinfo to be considered well‐formed all of the following must be true:

1. timeZone.numTransitions() > 0 2. The first transition in timeZone is at the first representable bdlt::Datetime value, "Jan 01, 0001 00 00.000" ‐‐ i.e., bdlt::Datetime(1, 1, 1). 3. There is no transition in the ordered sequence of transitions described by timeZone where the local clock time is adjusted (either forwards or backwards) introducing a period of invalid or ambiguous local times, where that range of invalid or ambiguous local times overlaps with a range of invalid or or ambiguous local times introduced by the subsequent transition (see component documentation for an illustration).

Note that this method has linear worst‐case time complexity with respect to timeZone.numTransitions().

true if timeZone is well‐formed, and false otherwise

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