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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-eval/strlen.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-eval/strlen.rs')
-rw-r--r-- | src/test/ui/consts/const-eval/strlen.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/consts/const-eval/strlen.rs b/src/test/ui/consts/const-eval/strlen.rs new file mode 100644 index 000000000..7b14a5235 --- /dev/null +++ b/src/test/ui/consts/const-eval/strlen.rs @@ -0,0 +1,31 @@ +// run-pass + +const S: &str = "foo"; +pub const B: &[u8] = S.as_bytes(); +pub const C: usize = B.len(); +pub const D: bool = B.is_empty(); +pub const E: bool = S.is_empty(); +pub const F: usize = S.len(); + +pub fn foo() -> [u8; S.len()] { + let mut buf = [0; S.len()]; + for (i, &c) in S.as_bytes().iter().enumerate() { + buf[i] = c; + } + buf +} + +fn main() { + assert_eq!(&foo()[..], b"foo"); + assert_eq!(foo().len(), S.len()); + const LEN: usize = S.len(); + assert_eq!(LEN, S.len()); + assert_eq!(B, foo()); + assert_eq!(B, b"foo"); + assert_eq!(C, 3); + assert_eq!(F, 3); + assert!(!D); + assert!(!E); + const EMPTY: bool = "".is_empty(); + assert!(EMPTY); +} |