mirror of https://github.com/rust-lang/rust.git
55 lines
1.3 KiB
Rust
55 lines
1.3 KiB
Rust
//@ run-pass
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// Makes sure we use `==` (not bitwise) semantics for float comparison.
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#![feature(f128)]
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#![feature(f16)]
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// FIXME(f16_f128): remove gates when ABI issues are resolved
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#[cfg(all(target_arch = "aarch64", target_os = "linux"))]
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fn check_f16() {
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const F1: f16 = 0.0;
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const F2: f16 = -0.0;
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assert_eq!(F1, F2);
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assert_ne!(F1.to_bits(), F2.to_bits());
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assert!(matches!(F1, F2));
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assert!(matches!(F2, F1));
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}
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fn check_f32() {
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const F1: f32 = 0.0;
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const F2: f32 = -0.0;
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assert_eq!(F1, F2);
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assert_ne!(F1.to_bits(), F2.to_bits());
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assert!(matches!(F1, F2));
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assert!(matches!(F2, F1));
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}
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fn check_f64() {
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const F1: f64 = 0.0;
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const F2: f64 = -0.0;
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assert_eq!(F1, F2);
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assert_ne!(F1.to_bits(), F2.to_bits());
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assert!(matches!(F1, F2));
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assert!(matches!(F2, F1));
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}
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#[cfg(all(target_arch = "aarch64", target_os = "linux"))]
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fn check_f128() {
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const F1: f128 = 0.0;
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const F2: f128 = -0.0;
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assert_eq!(F1, F2);
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assert_ne!(F1.to_bits(), F2.to_bits());
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assert!(matches!(F1, F2));
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assert!(matches!(F2, F1));
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}
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fn main() {
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#[cfg(all(target_arch = "aarch64", target_os = "linux"))]
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check_f16();
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check_f32();
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check_f64();
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#[cfg(all(target_arch = "aarch64", target_os = "linux"))]
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check_f128();
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}
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