Jonathan Wakely
87a9bfe86d
This fixes the remaining problem reported in the PR, that the special members should be trivial. This can be done by constraining the non-trivial versions and adding defaulted overloads that will be used when the union members are trivial. Making these members trivial alters the argument passing ABI and so isn't suitable for backporting to release branches. libstdc++-v3/ChangeLog: PR libstdc++/100823 * include/bits/stl_iterator.h (common_iterator): Define destructor, copy constructor and move constructor as trivial when the underlying types allow. * testsuite/24_iterators/common_iterator/100823.cc: Check triviality of special members.
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