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The GCC 8 lambda overhaul fixed most uses of lambdas in pack expansions, but local enums and classes within such lambdas that depend on parameter packs are still broken. For now, give a sorry instead of an ICE or incorrect error. PR c++/100198 PR c++/100030 PR c++/100282 gcc/cp/ChangeLog: * parser.cc (cp_parser_enumerator_definition): Sorry on parameter pack in lambda. (cp_parser_class_head): And in class attributes. * pt.cc (check_for_bare_parameter_packs): Sorry instead of error in lambda. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/lambda/lambda-variadic13.C: Accept the sorry as well as the correct error. * g++.dg/cpp0x/lambda/lambda-variadic14.C: Likewise. * g++.dg/cpp0x/lambda/lambda-variadic14a.C: New test. * g++.dg/cpp0x/lambda/lambda-variadic15.C: New test. * g++.dg/cpp0x/lambda/lambda-variadic16.C: New test.
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