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From: "johelegp at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/95797] New: Can std::allocator.deallocate newed pointer
 during constant evaluation
Date: Sun, 21 Jun 2020 03:14:05 +0000
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X-Bugzilla-Component: c++
X-Bugzilla-Version: 10.1.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95797

            Bug ID: 95797
           Summary: Can std::allocator.deallocate newed pointer during
                    constant evaluation
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: johelegp at gmail dot com
  Target Milestone: ---

See https://godbolt.org/z/TxPbdC.
```C++
#include <memory>
static_assert(
    (std::allocator<int>{}.deallocate(new int[1], 1),
    true));
```
According to https://timsong-cpp.github.io/cppwp/n4861/allocator.members#6,=
 the
argument "is a pointer value obtained from `allocate()`".=