CWG2709 Parenthesized initialization of reference-to-array

[jensmaurer]

Paper P0960R3 enabled initialization of aggregates (including arrays) from parenthesized expression lists. The rather similar case of initializating a reference to an aggregate was not addressed. For example:

  const int (&ra)[2](1,2);

There is no evidence in 9.4.1 [dcl.init.general] paragraph 16 that such support is intended, nor does 9.4.4 [dcl.init.ref] paragraph 5 admit an initializer other than a (single) expression for a reference.

See CWG2709.

[erichkeane]

EWG discussed this during the May 11th, 2023 telecon, and the following poll was taken:

For CWG2709, EWG believes that parenthesized aggregate initialization should also be valid on a reference to an aggregate.

SF	F	N	A	SA
0	0	4	6	2

Result: Consensus Against

EWG was in agreement with the status quo, so there is nothing left to do for this issue, closing.