[Bug c++/77321] [7 Regression] crash in warn_for_memset

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77321

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |mpolacek at gcc dot 
gnu.org
   Target Milestone|---                         |7.0

--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
All right, I'm going to commit the patch with this testcase instead (it's the
original testcase, I just removed #includes and added prototypes.

extern "C" void *memset (void *, int, __SIZE_TYPE__);
extern "C" void *malloc(__SIZE_TYPE__);

struct S {
    char *a;
};

template <typename T>
void Test(T & Obj) {
    auto && a(Obj.a);
    a = (char*)::malloc(1024 * 1024);
    ::memset(a + 28, 'X', 6);
}

int main()
{
  S d;
  Test(d);
  return 0;
}