[Bug c++/90473] gcc does not call function in comma operator for default argument

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90473

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This is where we lose the side-effect:

check_default_argument
13174   /* Avoid redundant -Wzero-as-null-pointer-constant warnings at
13175      the call sites.  */
13176   if (TYPE_PTR_OR_PTRMEM_P (decl_type)
13177       && null_ptr_cst_p (arg))
13178     return nullptr_node;

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