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| author | Jason Merrill <jason@redhat.com> | 2021-08-29 18:17:22 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2021-08-30 17:25:21 -0400 |
| commit | 8960a29b18b830ff0490b7f52051903fba472e45 (patch) | |
| tree | 35a7a49679fa0b3925eb27ea96f7eaf295f5e535 /gcc/config.gcc | |
| parent | 729f6881cfcc6df3c15a1dd4ebd45bc46bb8f3e9 (diff) | |
| download | gcc-8960a29b18b830ff0490b7f52051903fba472e45.zip gcc-8960a29b18b830ff0490b7f52051903fba472e45.tar.gz gcc-8960a29b18b830ff0490b7f52051903fba472e45.tar.bz2 | |
c++: limit instantiation with ill-formed class [PR96286]
I noticed that after the static_assert failures in lwg3466.cc, we got
various follow-on errors because we went ahead and tried to instantiate the
promise<T> member functions even after instantiating the class itself ran
into problems. Interrupting instantiation of the class itself seems likely
to cause error-recovery problems, but preventing instantiation of member
functions seems strictly better for error-recovery.
This doesn't fix any of the specific testcases in PR96286, but addresses
part of that problem space.
PR c++/96286
gcc/cp/ChangeLog:
* cp-tree.h (struct lang_type): Add erroneous bit-field.
(CLASSTYPE_ERRONEOUS): New.
* pt.c (limit_bad_template_recursion): Check it.
(instantiate_class_template_1): Set it.
libstdc++-v3/ChangeLog:
* testsuite/30_threads/promise/requirements/lwg3466.cc:
Remove dg-prune-outputs.
gcc/testsuite/ChangeLog:
* g++.dg/template/access2.C: Split struct A.
Diffstat (limited to 'gcc/config.gcc')
0 files changed, 0 insertions, 0 deletions