Auto merge of #616 - fitzgen:explicit-test-for-default-type-parameters, r=emilio

Add a test explicitly for default type parameters

This is exercised in other tests, but in a round about fashion. It is nice to have a test that explicitly exercises default type parameters, without any cruft.

r? @emilio

2 files changed, 37 insertions, 0 deletions

diff --git a/tests/expectations/tests/default-template-parameter.rs b/tests/expectations/tests/default-template-parameter.rs
new file mode 100644
index 00000000..af4616ff
--- /dev/null
+++ b/tests/expectations/tests/default-template-parameter.rs
@@ -0,0 +1,30 @@
+/* automatically generated by rust-bindgen */
+
+
+#![allow(non_snake_case)]
+
+
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct Foo<T, U> {
+    pub t: T,
+    pub u: U,
+}
+impl <T, U> Default for Foo<T, U> {
+    fn default() -> Self { unsafe { ::std::mem::zeroed() } }
+}
+#[test]
+fn __bindgen_test_layout_Foo_instantiation_6() {
+    assert_eq!(::std::mem::size_of::<Foo<bool, ::std::os::raw::c_int>>() ,
+               8usize , concat ! (
+               "Size of template specialization: " , stringify ! (
+               Foo<bool, ::std::os::raw::c_int> ) ));
+    assert_eq!(::std::mem::align_of::<Foo<bool, ::std::os::raw::c_int>>() ,
+               4usize , concat ! (
+               "Alignment of template specialization: " , stringify ! (
+               Foo<bool, ::std::os::raw::c_int> ) ));
+}
+extern "C" {
+    #[link_name = "_ZL3bar"]
+    pub static mut bar: Foo<bool, ::std::os::raw::c_int>;
+}
diff --git a/tests/headers/default-template-parameter.hpp b/tests/headers/default-template-parameter.hpp
new file mode 100644
index 00000000..4deed834
--- /dev/null
+++ b/tests/headers/default-template-parameter.hpp
@@ -0,0 +1,7 @@
+template <typename T, typename U = int>
+struct Foo {
+    T t;
+    U u;
+};
+
+static Foo<bool> bar;