Swift version: 5.0
Swift gives us the
#if swift build configuration option, which lets you compile certain code only if a specific version of the Swift compiler is detected. This is particularly useful for libraries that need to support multiple incompatible versions of Swift at the same time, because only one version of their code will ever be compiled.
In the example below, the
print() code will display one of two messages depending on whether you're using an old version of Swift:
#if swift(>=5.0) print("Running Swift 5.0 or later") #else print("Running old Swift") #endif
SPONSOR Tired of wasting time debugging your Swift app? Instabug’s SDK is here to help you minimize your debugging time by providing you with complete device details, network logs, and reproduction steps with every bug report. All data is attached automatically. It only takes a line of code to setup. Get started for free.
Available from iOS 7.0
Did this solution work for you? Please pass it on!
Other people are reading…
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.