This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 110b. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2023-01-15


659. Alignment of function types

Section: 7.6.2.6  [expr.alignof]     Status: CD1     Submitter: Alisdair Meredith     Date: 7 November 2007

[Voted into the WP at the September, 2008 meeting.]

The specification for the alignof operator (7.6.2.6 [expr.alignof]) does not forbid function types as operands, although it probably should.

Proposed resolution (March, 2008):

The issue, as described, is incorrect. The requirement in 7.6.2.6 [expr.alignof] is for “a complete object type,” so a function type is already forbidden. However, the existing text does have a problem in this requirement in that it does not allow a reference type, as anticipated by paragraph 3. Consequently, the proposal is to change 7.6.2.6 [expr.alignof] paragraph 1 as indicated:

An alignof expression yields the alignment requirement of its operand type. The operand shall be a type-id representing a complete object type or a reference to a complete object type.