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| author | Jason Merrill <jason@redhat.com> | 2023-06-24 05:15:02 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2023-06-27 23:29:44 -0400 |
| commit | a1c6e9631ca33990a2b7411060ca4d18db081a7d (patch) | |
| tree | 91afe40e02b6179349c3e29a2d3ffb8a2e4c2d9c /gcc/expr.cc | |
| parent | dcd538933f8559b4ca9467da8eff3040f5af6166 (diff) | |
| download | gcc-a1c6e9631ca33990a2b7411060ca4d18db081a7d.zip gcc-a1c6e9631ca33990a2b7411060ca4d18db081a7d.tar.gz gcc-a1c6e9631ca33990a2b7411060ca4d18db081a7d.tar.bz2 | |
c++: C++26 constexpr cast from void* [PR110344]
P2768 allows static_cast from void* to ob* in constant evaluation if the
pointer does in fact point to an object of the appropriate type.
cxx_fold_indirect_ref already does the work of finding such an object if it
happens to be a subobject rather than the outermost object at that address,
as in constexpr-voidptr2.C.
P2768
PR c++/110344
gcc/c-family/ChangeLog:
* c-cppbuiltin.cc (c_cpp_builtins): Update __cpp_constexpr.
gcc/cp/ChangeLog:
* constexpr.cc (cxx_eval_constant_expression): In C++26, allow cast
from void* to the type of a pointed-to object.
gcc/testsuite/ChangeLog:
* g++.dg/cpp26/constexpr-voidptr1.C: New test.
* g++.dg/cpp26/constexpr-voidptr2.C: New test.
* g++.dg/cpp26/feat-cxx26.C: New test.
Diffstat (limited to 'gcc/expr.cc')
0 files changed, 0 insertions, 0 deletions