mirror of https://github.com/rust-lang/rust
28 lines
610 B
Rust
28 lines
610 B
Rust
//@ run-pass
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#![feature(core_intrinsics)]
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#![feature(const_intrinsic_compare_bytes)]
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use std::intrinsics::compare_bytes;
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fn main() {
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const A: i32 = unsafe {
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compare_bytes(1 as *const u8, 2 as *const u8, 0)
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};
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assert_eq!(A, 0);
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const B: i32 = unsafe {
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compare_bytes([1, 2].as_ptr(), [1, 3].as_ptr(), 1)
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};
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assert_eq!(B, 0);
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const C: i32 = unsafe {
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compare_bytes([1, 2, 9].as_ptr(), [1, 3, 8].as_ptr(), 2)
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};
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assert!(C < 0);
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const D: i32 = unsafe {
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compare_bytes([1, 3, 8].as_ptr(), [1, 2, 9].as_ptr(), 2)
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};
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assert!(D > 0);
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}
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