how to exit the program rust
To exit a program in Rust, you can use the std::process::exit
function. The exit
function terminates the current process and returns the specified exit code to the operating system.
Here's an example of how you can use std::process::exit
to exit a Rust program:
use std::process;
fn main() {
// Perform some operations...
// Exit the program with exit code 0
process::exit(0);
}
In the above example, the main
function performs some operations, and then the process::exit(0)
statement is used to terminate the program with an exit code of 0.
You can replace the 0
with any other exit code you want to return to the operating system. By convention, an exit code of 0 typically indicates successful program execution, while non-zero exit codes indicate errors or abnormal termination.
Keep in mind that when you use std::process::exit
, it immediately terminates the program without running any destructors or cleanup code. Make sure to handle any necessary cleanup operations before calling exit
if needed.