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| author | Jakub Jelinek <jakub@redhat.com> | 2020-10-29 16:27:01 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2020-10-29 16:27:01 +0100 |
| commit | 815baade9a07d361b1daa1dcfbbda2a79f3ebb52 (patch) | |
| tree | d009f7c200116f53e11dd3b94f040f55efe1b358 /gcc/cp/decl.c | |
| parent | 40749db75caff2fed7b7053e0d1868feaa21bcb4 (diff) | |
| download | gcc-815baade9a07d361b1daa1dcfbbda2a79f3ebb52.zip gcc-815baade9a07d361b1daa1dcfbbda2a79f3ebb52.tar.gz gcc-815baade9a07d361b1daa1dcfbbda2a79f3ebb52.tar.bz2 | |
c++: Diagnose constexpr delete [] new int; and delete new int[N]; [PR95808]
This patch diagnoses delete [] new int; and delete new int[1]; in constexpr
contexts by remembering
IDENTIFIER_OVL_OP_FLAGS (DECL_NAME (fun)) & OVL_OP_FLAG_VEC
from the operator new and checking it at operator delete time.
2020-10-29 Jakub Jelinek <jakub@redhat.com>
PR c++/95808
* cp-tree.h (enum cp_tree_index): Add CPTI_HEAP_VEC_UNINIT_IDENTIFIER
and CPTI_HEAP_VEC_IDENTIFIER.
(heap_vec_uninit_identifier, heap_vec_identifier): Define.
* decl.c (initialize_predefined_identifiers): Initialize those
identifiers.
* constexpr.c (cxx_eval_call_expression): Reject array allocations
deallocated with non-array deallocation or non-array allocations
deallocated with array deallocation.
(non_const_var_error): Handle heap_vec_uninit_identifier and
heap_vec_identifier too.
(cxx_eval_constant_expression): Handle also heap_vec_uninit_identifier
and in that case during initialization replace it with
heap_vec_identifier.
(find_heap_var_refs): Handle heap_vec_uninit_identifier and
heap_vec_identifier too.
* g++.dg/cpp2a/constexpr-new15.C: New test.
Diffstat (limited to 'gcc/cp/decl.c')
| -rw-r--r-- | gcc/cp/decl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c index ee3c353..39f56b8 100644 --- a/gcc/cp/decl.c +++ b/gcc/cp/decl.c @@ -4245,6 +4245,8 @@ initialize_predefined_identifiers (void) {"heap uninit", &heap_uninit_identifier, cik_normal}, {"heap ", &heap_identifier, cik_normal}, {"heap deleted", &heap_deleted_identifier, cik_normal}, + {"heap [] uninit", &heap_vec_uninit_identifier, cik_normal}, + {"heap []", &heap_vec_identifier, cik_normal}, {NULL, NULL, cik_normal} }; |