rust/tests/ui/fmt/issue-23781.rs
2024-02-16 20:02:50 +00:00

30 lines
415 B
Rust

//@ run-pass
use std::fmt;
struct Foo;
impl fmt::Debug for Foo {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
println!("<Foo as Debug>::fmt()");
write!(fmt, "")
}
}
fn test1() {
let foo_str = format!("{:?}", Foo);
println!("{}", foo_str);
}
fn test2() {
println!("{:?}", Foo);
}
fn main() {
// This works fine
test1();
// This fails
test2();
}