Can I create a breakpoint in code in iOS, like `__asm{int 3}` on VC++, and continue execution after it's been hit?

Question

I\'m trying to put the equivalent of asm{int 3} (or similar) into my iPhone program. My goal is to have Xcode stop exactly on the offending line, without having

Answer 1

Try:

__builtin_trap();

works on Mac as well as iOS, and you can drag the little green cursor to the next line to continue running.

Answer 2

I've tried all of these solutions and although @RichardGroves answer preserved the stack, the best solution is to:

1. create your own assert method, such as Debug::assert(...)
2. set a breakpoint within XCode on that implementation
3. use the Step Out command to get back to the caller

This is because it's the only reliable way to both

• view the stack trace
• step / continue

Answer 3

raise(SIGTRAP) is a relatively portable way to have an "in code" breakpoint.