Repeated specifiers
Clause [9] [dcl.dcl]
Ville Voutilainen

Created on 2014-01-10.00:00:00 last changed 49 months ago


Date: 2014-11-15.00:00:00

[Moved to DR at the November, 2014 meeting.]

Date: 2014-02-15.00:00:00

Proposed resolution (February, 2014):

Add the following as a new paragraph before 9.2 [dcl.spec] paragraph 2:

Each decl-specifier shall appear at most once in the complete decl-specifier-seq of a declaration, except that long may appear twice.

If a type-name is encountered...

Date: 2014-01-10.00:00:00

Although repeated type-specifiers such as const are forbidden, there is no such prohibition against repeated non-type specifiers like constexpr and virtual. Should there be?

On the “con” side, it's not clear that such a prohibition actually helps anyone; it could happen via macros, and a warning about non-macro use could be a QoI issue. Also, C99 moved in the opposite direction, removing the prohibition against repeated cv-qualifiers.

Date User Action Args
2017-02-06 00:00:00adminsetstatus: drwp -> cd4
2015-05-25 00:00:00adminsetstatus: dr -> drwp
2015-04-13 00:00:00adminsetmessages: + msg5354
2014-11-24 00:00:00adminsetstatus: ready -> dr
2014-03-03 00:00:00adminsetmessages: + msg4817
2014-03-03 00:00:00adminsetstatus: open -> ready
2014-01-10 00:00:00admincreate