Function std::rt::unwind::begin_unwind_fmt [] [src]

pub fn begin_unwind_fmt(msg: Arguments, file_line: &(&'static str, u32)) -> !
Unstable

The entry point for unwinding with a formatted message.

This is designed to reduce the amount of code required at the call site as much as possible (so that panic!()`panic!()` has as low an impact on (e.g.) the inlining of other functions as possible), by moving the actual formatting into this shared place.