// This conversion should always succeed.
pub fn u64_from_usize(num: usize) -> u64 {
u64::try_from(num).expect("Failed converting a usize into a u64.")
}
#[cfg(test)]
mod tests {
use super::*;
use xpct::{equal, expect};
#[test]
fn convert_int() {
expect!(u64_from_usize(42)).to(equal(42));
}
}