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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:59:35 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:59:35 +0000 |
commit | d1b2d29528b7794b41e66fc2136e395a02f8529b (patch) | |
tree | a4a17504b260206dec3cf55b2dca82929a348ac2 /tests/ui/consts/const-compare-bytes.rs | |
parent | Releasing progress-linux version 1.72.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-d1b2d29528b7794b41e66fc2136e395a02f8529b.tar.xz rustc-d1b2d29528b7794b41e66fc2136e395a02f8529b.zip |
Merging upstream version 1.73.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/consts/const-compare-bytes.rs')
-rw-r--r-- | tests/ui/consts/const-compare-bytes.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/ui/consts/const-compare-bytes.rs b/tests/ui/consts/const-compare-bytes.rs new file mode 100644 index 000000000..74e29f813 --- /dev/null +++ b/tests/ui/consts/const-compare-bytes.rs @@ -0,0 +1,27 @@ +// run-pass + +#![feature(core_intrinsics)] +#![feature(const_intrinsic_compare_bytes)] +use std::intrinsics::compare_bytes; + +fn main() { + const A: i32 = unsafe { + compare_bytes(1 as *const u8, 2 as *const u8, 0) + }; + assert_eq!(A, 0); + + const B: i32 = unsafe { + compare_bytes([1, 2].as_ptr(), [1, 3].as_ptr(), 1) + }; + assert_eq!(B, 0); + + const C: i32 = unsafe { + compare_bytes([1, 2, 9].as_ptr(), [1, 3, 8].as_ptr(), 2) + }; + assert!(C < 0); + + const D: i32 = unsafe { + compare_bytes([1, 3, 8].as_ptr(), [1, 2, 9].as_ptr(), 2) + }; + assert!(D > 0); +} |