Objective-C @available guard AND'ed with more conditions

Question

Objective-C has an @available expression in XCode 9+ / LLVM 5+ that allows you to guard a block of code to at least a certain OS version so that it won\'t emit unguarded ava

Answer 1

inline bool iOS13()
{
    if(@available(iOS 13, *))
        return true;
    else
        return false;
}

if(iOS13() && x == y)
    //...