I prefer to use Objective-C when using a C API that involves heavy use of pointers (buffer pointers, pointers to structs, requires mallocing things, etc.). It’s

I prefer to use Objective-C when using a C API that involves heavy use of pointers (buffer pointers, pointers to structs, requires mallocing things, etc.). It’s not that Swift can’t be used, it’s just that doing all of that is painful in Swift, and completely straightforward in ObjC. I also occasionally need to use C++, which ObjC makes easy in the form of Objective-C++. Swift doesn’t (yet?) have any ability to interface with C++.