From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/self/string-self-append.rs | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 src/test/ui/self/string-self-append.rs (limited to 'src/test/ui/self/string-self-append.rs') diff --git a/src/test/ui/self/string-self-append.rs b/src/test/ui/self/string-self-append.rs new file mode 100644 index 000000000..e63dc0090 --- /dev/null +++ b/src/test/ui/self/string-self-append.rs @@ -0,0 +1,14 @@ +// run-pass +pub fn main() { + // Make sure we properly handle repeated self-appends. + let mut a: String = "A".to_string(); + let mut i = 20; + let mut expected_len = 1; + while i > 0 { + println!("{}", a.len()); + assert_eq!(a.len(), expected_len); + a = format!("{}{}", a, a); + i -= 1; + expected_len *= 2; + } +} -- cgit v1.2.3