Weekend update: Operator and parsing design notes

Herb Sutter Cpp2, cppfront 2022-10-102022-10-11 1 Minute

Thanks again for all the bug reports and feedback for Cpp2 and cppfront! As I mentioned last weekend, I’ve started a wiki with “Design notes” about specific aspects of the design to answer why I’ve made them they way they currently are… basic rationale, alternatives considered, in a nutshell, as quick answers to common questions I encounter repeatedly.

This weekend I wrote up three more short design notes, the first of which is the writeup on “why postfix unary operators?” that I promised in my CppCon 2022 talk.

Design note: Postfix operators. Why are unary * and & postfix? What about ++? Why does the -> operator naturally disappear?
Design note: Postfix unary operators vs binary operators. What about examples like a**b?
Design note: Unambiguous parsing. How does Cpp2 parse things that seem ambiguous and/or challenging, like a<b>c,d>?

Published by Herb Sutter

Herb Sutter is an author and speaker, a software architect at Microsoft, and chair of the ISO C++ standards committee. View all posts by Herb Sutter

Published 2022-10-102022-10-11