# Function std::thread::panicking 1.0.0 [−] [src]

    pub fn panicking() -> bool

Determines whether the current thread is unwinding because of panic.

# Examples

fn main() { use std::thread; struct SomeStruct; impl Drop for SomeStruct { fn drop(&mut self) { if thread::panicking() { println!("dropped while unwinding"); } else { println!("dropped while not unwinding"); } } } { print!("a: "); let a = SomeStruct; } { print!("b: "); let b = SomeStruct; panic!() } }

    use std::thread;

    struct SomeStruct;

    impl Drop for SomeStruct {
        fn drop(&mut self) {
            if thread::panicking() {
                println!("dropped while unwinding");
            } else {
                println!("dropped while not unwinding");
            }
        }
    }

    {
        print!("a: ");
        let a = SomeStruct;
    }

    {
        print!("b: ");
        let b = SomeStruct;
        panic!()
    }

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