Do you have practical experience using the C programming language?

Yes, I have practical experience programming in C. Specifically, I used C for developing low-level modules and optimizing performance in iOS projects.

For example, I wrote C extensions for data processing, which were then called from Swift or Objective-C code. This helped increase the speed of critical sections.

I am also familiar with the basics of memory management, pointers, and the structure of C programs, which is important for understanding how iOS works at a low level.