Instantiation of template template parameters for nested templates, e.g.,

  template<typename T>
  struct X {
    template<template<T Value> class Y> struct Inner;
  };



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86844 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 insertions, 0 deletions

diff --git a/test/SemaTemplate/nested-template.cpp b/test/SemaTemplate/nested-template.cpp
index 4d948184ce..849d835541 100644
--- a/test/SemaTemplate/nested-template.cpp
+++ b/test/SemaTemplate/nested-template.cpp
@@ -108,3 +108,21 @@ struct X1 {
   template<typename, bool = false> struct B { };
 };
 template struct X1<int>::B<bool>;
+
+// Template template parameters
+template<typename T>
+struct X2 {
+  template<template<class U, T Value> class>  // expected-error{{cannot have type 'float'}} \
+                                              // expected-note{{previous non-type template}}
+    struct Inner { };
+};
+
+template<typename T, 
+         int Value> // expected-note{{template non-type parameter}}
+  struct X2_arg;
+
+X2<int>::Inner<X2_arg> x2i1;
+X2<float>::Inner<X2_arg> x2i2; // expected-note{{instantiation}}
+X2<long>::Inner<X2_arg> x2i3; // expected-error{{template template argument has different}}
+
+