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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/consts/const-fn.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/consts/const-fn.rs')
-rw-r--r-- | src/test/ui/consts/const-fn.rs | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/test/ui/consts/const-fn.rs b/src/test/ui/consts/const-fn.rs new file mode 100644 index 000000000..59680e6e4 --- /dev/null +++ b/src/test/ui/consts/const-fn.rs @@ -0,0 +1,42 @@ +// run-pass +#![allow(stable_features)] + +// A very basic test of const fn functionality. + +#![feature(const_indexing)] + +const fn add(x: u32, y: u32) -> u32 { + x + y +} + +const fn sub(x: u32, y: u32) -> u32 { + x - y +} + +const unsafe fn div(x: u32, y: u32) -> u32 { + x / y +} + +const fn generic<T>(t: T) -> T { + t +} + +const fn generic_arr<T: Copy>(t: [T; 1]) -> T { + t[0] +} + +const SUM: u32 = add(44, 22); +const DIFF: u32 = sub(44, 22); +const DIV: u32 = unsafe{div(44, 22)}; + +fn main() { + assert_eq!(SUM, 66); + assert!(SUM != 88); + + assert_eq!(DIFF, 22); + assert_eq!(DIV, 2); + + let _: [&'static str; sub(100, 99) as usize] = ["hi"]; + let _: [&'static str; generic(1)] = ["hi"]; + let _: [&'static str; generic_arr([1])] = ["hi"]; +} |