#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(f128)]
fn main() {
    #[cfg(all(target_arch = "x86_64", target_os = "linux"))]
    {
        use std::num::FpCategory;
        let num = 12.4_f128;
        let inf = f128::INFINITY;
        assert_eq!(num.classify(), FpCategory::Normal);
        assert_eq!(inf.classify(), FpCategory::Infinite);
    }
}