This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 116a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.

2024-12-19

1035. Omitted and required decl-specifiers

[Voted into the WP at the March, 2011 meeting as part of paper N3262.]

According to 11.4 [class.mem] paragraph 6,

The decl-specifier-seq is omitted in constructor, destructor, and conversion function declarations only.

This is incorrect, as some decl-specifiers (explicit, virtual, inline, constexpr) are permitted in these declarations. Conversely, C.7.6 [diff.dcl], “Banning implicit int,” says,

In C++ a decl-specifier-seq must contain a type-specifier.

This is also incorrect for these declarations.

Proposed resolution (February, 2011) [SUPERSEDED]:

1. Change 11.4 [class.mem] paragraph 7 as follows:

The decl-specifier-seq is may be omitted in constructor, destructor, and conversion function declarations only; when declaring another kind of member the decl-specifier-seq shall contain a type-specifier that is not a cv-qualifier. The member-declarator-list can be omitted...

2. Change C.7.6 [diff.dcl], “Banning implicit int,” as follows:

In C++ a decl-specifier-seq must contain a type-specifier, unless it is followed by a declarator for a constructor, a destructor, or a conversion function. In the following example...