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-rw-r--r--tests/ui/const-generics/try-from-with-const-genericsrs-98299.rs21
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/const-generics/try-from-with-const-genericsrs-98299.rs b/tests/ui/const-generics/try-from-with-const-genericsrs-98299.rs
new file mode 100644
index 00000000000..49c88856bc9
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+++ b/tests/ui/const-generics/try-from-with-const-genericsrs-98299.rs
@@ -0,0 +1,21 @@
+// https://github.com/rust-lang/rust/issues/98299
+use std::convert::TryFrom;
+
+pub fn test_usage(p: ()) {
+    SmallCString::try_from(p).map(|cstr| cstr);
+    //~^ ERROR: type annotations needed
+    //~| ERROR: type annotations needed
+    //~| ERROR: type annotations needed
+}
+
+pub struct SmallCString<const N: usize> {}
+
+impl<const N: usize> TryFrom<()> for SmallCString<N> {
+    type Error = ();
+
+    fn try_from(path: ()) -> Result<Self, Self::Error> {
+        unimplemented!();
+    }
+}
+
+fn main() {}