#ifdef replacement in the Swift language
preprocessor, preprocessor-directive, swift, xcode
Solution
Yes you can do it.
In Swift you can still use the "#if/#else/#endif" preprocessor macros (although more constrained), as per Apple docs. Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the `-D DEBUG` entry.
As usual, you can set a different value when in Debug or when in Release.
I tested it in real code and it works; it doesn't seem to be recognized in a playground though.
You can read my original post here.
IMPORTANT NOTE: `-DDEBUG=1` doesn't work. Only `-D DEBUG` works. Seems compiler is ignoring a flag with a specific value.
Problem
In C/C++/Objective C you can define a macro using compiler preprocessors. Moreover, you can include/exclude some parts of code using compiler preprocessors. ``` #ifdef DEBUG // Debug-only code #endif ``` Is there a similar solution in Swift?