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: N3801

Date: 2013-10-14

Removing Undefined Behavior from the Preprocessor

by Gabriel Dos Reis

Excerpt:

This paper recommends removal of undefined behavior from the C++ preprocessor. In all cases, the erroneous constructs are identified as violations of diagnosable rules.