Proposed resolution:

Change paragraph [depr.base]/1 as follows:

1 The class templates unary_function and binary_function are deprecated. A program shall not declare specializations of these templates.

[ 2011-03-06 Daniel comments ]

This meeting outcome was not properly reflected in the proposed resolution. I also adapted the suggested wording to the N3242 numbering and content state. During this course of action it turned out that the first suggested wording change has already been applied.

[ 2010 Batavia: ]

Pete: Is this issue actually addressed by N3198, or did deprecating unary/binary_function?

We determined that this issue is NOT resolved and that it must be resolved or else N3198 could break code that does specialize unary/binary function.

Matt: don't move to NAD

Howard: I suggest we go further and move 1279 to ready for Madrid.

Group: Agrees move 1279 to ready for Madrid

Previous proposed resolution:

1 The following classes class templates are provided to simplify the typedefs of the argument and result types:. A program shall not declare specializations of these templates.

[ 2010-10-24 Daniel adds: ]

Accepting n3145 would resolve this issue as NAD editorial.

[ 2010-03-27 Daniel adds: ]

Accepting issue 1290 would resolve this issue as NAD editorial.

A program should not be allowed to add specialization of class templates unary_function and binary_function, in force of [namespace.std]/1. If a program were allowed to specialize these templates, the library could no longer rely on them to provide the intended typedefs or there might be other undesired interactions.