assert_eq(-{5.0_f64}, -5.0_f64);
// infinities, NaN
assert!((5.0_f32/0.0).is_infinite());
+ assert_ne!({5.0_f32/0.0}, {-5.0_f32/0.0});
assert!((5.0_f64/0.0).is_infinite());
+ assert_ne!({5.0_f64/0.0}, {5.0_f64/-0.0});
assert!((-5.0_f32).sqrt().is_nan());
assert!((-5.0_f64).sqrt().is_nan());
+ assert_ne!(f32::NAN, f32::NAN);
+ assert_ne!(f64::NAN, f64::NAN);
+ // negative zero
+ let posz = 0.0f32;
+ let negz = -0.0f32;
+ assert_eq(posz, negz);
+ assert_ne!(posz.to_bits(), negz.to_bits());
+ let posz = 0.0f64;
+ let negz = -0.0f64;
+ assert_eq(posz, negz);
+ assert_ne!(posz.to_bits(), negz.to_bits());
// byte-level transmute
let x: u64 = unsafe { std::mem::transmute(42.0_f64) };
let y: f64 = unsafe { std::mem::transmute(x) };