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Verify a warning for a class with a ref-qualified assignment (PR c++/98835).

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gcc/testsuite/ChangeLog:
	PR c++/98835
	* g++.dg/Wclass-memaccess-6.C: New test.
This commit is contained in:
Martin Sebor 2021-02-01 08:42:58 -07:00
parent 7e534fb7d8
commit c2f8e378d6
1 changed files with 18 additions and 0 deletions
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gcc/testsuite/g++.dg/Wclass-memaccess-6.C Normal file
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/* PR c++/98835 - -Wclass-memaccess with class with ref-qualified
copy-assignment operator
{ dg-do compile { target { c++11 } } }
{ dg-options "-Wall" } */
struct Bad
{
Bad* operator& () { return this; }
Bad & operator=(Bad const &) & = default;
};
void test ()
{
static_assert (__has_trivial_copy (Bad));
// T () = T (); // error
__builtin_memcpy (&Bad (), &Bad (), sizeof (Bad)); // { dg-warning "\\\[-Wclass-memaccess" }
}