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This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 119a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2025-12-20

2145. Parenthesized declarator in function definition

[Adopted at the June, 2016 meeting.]

According to 9.6.1 [dcl.fct.def.general] paragraph 2,

Thedeclarator in afunction-definition shall havethe form

D1 (parameter-declaration-clause)cv-qualifier-seq_opt
ref-qualifier_opt exception-specification_opt attribute-specifier-seq_opt trailing-return-type_opt

However, in practice implementations accept a parenthesizeddeclarator in a function definition.

Proposed resolution (April, 2016):

Change 9.6.1 [dcl.fct.def.general] paragraph 2 as follows:

Thedeclarator inIn afunction-definition shall havethe form,

D1parameters-and-qualifiers trailing-return-type_opt

eithervoiddeclarator; ordeclarator; shall be a well-formed functiondeclarator as described in9.3.4.6 [dcl.fct]. A function shall be defined onlyin namespace or class scope.