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2a26351b59
We represent the type of a pack init-capture as auto... with packs from the initializer stuck into PACK_EXPANSION_PARAMETER_PACKS so that expanding it produces the right number of elements. But when partially instantiating the auto..., we were changing PACK_EXPANSION_PARAMETER_PACKS to refer to only the auto itself. Fixed thus. gcc/cp/ChangeLog: PR c++/97938 * cp-tree.h (PACK_EXPANSION_AUTO_P): New. * lambda.c (add_capture): Set it. * pt.c (tsubst_pack_expansion): Handle it. gcc/testsuite/ChangeLog: PR c++/97938 * g++.dg/cpp2a/lambda-pack-init6.C: New test.
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