From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/consts/const-eval/strlen.rs | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 tests/ui/consts/const-eval/strlen.rs (limited to 'tests/ui/consts/const-eval/strlen.rs') diff --git a/tests/ui/consts/const-eval/strlen.rs b/tests/ui/consts/const-eval/strlen.rs new file mode 100644 index 000000000..7b14a5235 --- /dev/null +++ b/tests/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); +} -- cgit v1.2.3