A new WG21 paper is available. A copy is linked below, and the paper will also appear in the next normal WG21 mailing. If you are not a committee member, please use the comments section below or the std-proposals forum for public discussion.

Document number: N4113

Date: 2014-07-02

Reflection Type Traits For Classes, Unions and Enumerations (rev 3)

by Andrew Tomazos and Christian Kaeser

Excerpt:

We propose the addition of two new kinds of type trait, and four new type traits to the Metaprogramming and Type Traits Standard Library [meta] for the purposes of lowlevel reflection of classes, unions and enumerations. These primitives are thin wrappers for compiler instrinsics, require zero core language changes, and are designed to be consistent with the existing [meta] library. Pure library authors can then compose the primitives to provide higher-level reflection libraries and facilities.

This proposal revises N4027 in accordance with SG7 feedback from Rapperswil (N4027 revises
N3815 with SG7 feedback from Issequah).