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authorAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-05 09:13:28 +0100
committerAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-11 09:32:08 +0000
commitcf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch)
tree40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/recursion/recursion.rs
parentca855e6e42787ecd062d81d53336fe6788ef51a9 (diff)
downloadrust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz
rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip
Move /src/test to /tests
Diffstat (limited to 'tests/ui/recursion/recursion.rs')
-rw-r--r--tests/ui/recursion/recursion.rs25
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/recursion/recursion.rs b/tests/ui/recursion/recursion.rs
new file mode 100644
index 00000000000..b3ba0ec3a2a
--- /dev/null
+++ b/tests/ui/recursion/recursion.rs
@@ -0,0 +1,25 @@
+// build-fail
+// compile-flags:-C overflow-checks=off
+// normalize-stderr-test: ".nll/" -> "/"
+
+enum Nil {NilValue}
+struct Cons<T> {head:isize, tail:T}
+trait Dot {fn dot(&self, other:Self) -> isize;}
+impl Dot for Nil {
+  fn dot(&self, _:Nil) -> isize {0}
+}
+impl<T:Dot> Dot for Cons<T> {
+  fn dot(&self, other:Cons<T>) -> isize {
+    self.head * other.head + self.tail.dot(other.tail)
+  }
+}
+fn test<T:Dot> (n:isize, i:isize, first:T, second:T) ->isize {
+  match n {    0 => {first.dot(second)}
+    _ => {test (n-1, i+1, Cons {head:2*i+1, tail:first}, Cons{head:i*i, tail:second})}
+    //~^ ERROR recursion limit
+  }
+}
+pub fn main() {
+  let n = test(1, 0, Nil::NilValue, Nil::NilValue);
+  println!("{}", n);
+}