Function std::intrinsics::try

pub unsafe extern "rust-intrinsic" fn try(    try_fn: fn(*mut u8),     data: *mut u8,     catch_fn: fn(*mut u8, *mut u8)) -> i32

Rust's "try catch" construct which invokes the function pointer try_fn with the data pointer data.

The third argument is a function called if a panic occurs. This function takes the data pointer and a pointer to the target-specific exception object that was caught. For more information see the compiler's source as well as std's catch implementation.