[swift-evolution] [Planning][Request] "constexpr" for Swift 5

Daryle Walker darylew at mac.com
Sat Jul 29 18:01:51 CDT 2017

The “constexpr” facility from C++ allows users to define constants and functions that are determined and usable at compile-time, for compile-time constructs but still usable at run-time. The facility is a key step for value-based generic parameters (and fixed-size arrays if you don’t want to be stuck with integer literals for bounds). Can figuring out Swift’s story here be part of Swift 5?

Daryle Walker
Mac, Internet, and Video Game Junkie
darylew AT mac DOT com 

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