BloombergLP::baltzo::DefaultZoneinfoCache::defaultZoneinfoDataLocation

Return a null terminated (C‐style) string describing the default file‐system path of the (expected) root of the Zoneinfo Database time‐zone information files. The returned string will be the current value of the BDE_ZONEINFO_ROOT_PATH environment variable, if set, or else one of a (priority ordered) sequence of (platform‐specific) standard directories, if one of those directories exists and contains a sub‐set of expected files, and the current directory, otherwise. The behavior is undefined if the returned address is dereferenced after a subsequent call to the putenv POSIX function to set the BDE_ZONEINFO_ROOT_PATH environment variable.