temp_arg_template.cpp revision e53060fa78ad7e98352049f72787bdb7543e2a48 
1// RUN: clang-cc -fsyntax-only -verify %s
2
3template<template<typename T> class X> struct A; // expected-note 2{{previous template template parameter is here}}
4
5template<template<typename T, int I> class X> struct B; // expected-note{{previous template template parameter is here}}
6
7template<template<int I> class X> struct C;  // expected-note{{previous non-type template parameter with type 'int' is here}}
8
9template<class> struct X; // expected-note{{too few template parameters in template template argument}}
10template<int N> struct Y; // expected-note{{template parameter has a different kind in template argument}}
11template<long N> struct Ylong; // expected-note{{template non-type parameter has a different type 'long' in template argument}}
12
13namespace N {
14  template<class> struct Z;
15}
16template<class, class> struct TooMany; // expected-note{{too many template parameters in template template argument}}
17
18
19A<X> *a1;
20A<N::Z> *a2;
21A< ::N::Z> *a3;
22
23A<Y> *a4; // expected-error{{template template argument has different template parameters than its corresponding template template parameter}}
24A<TooMany> *a5; // expected-error{{template template argument has different template parameters than its corresponding template template parameter}}
25B<X> *a6; // expected-error{{template template argument has different template parameters than its corresponding template template parameter}}
26C<Y> *a7;
27C<Ylong> *a8; // expected-error{{template template argument has different template parameters than its corresponding template template parameter}}
28
29template<typename T> void f(int); // expected-note{{function template}}
30
31// FIXME: we're right to provide an error message, but it should say
32// that we need a class template. We won't get this right until name
33// lookup of 'f' returns a TemplateDecl.
34A<f> *a9; // expected-error{{template argument does not refer to}}
35
36// FIXME: The code below is ill-formed, because of the evil digraph '<:'.
37// We should provide a much better error message than we currently do.
38// A<::N::Z> *a10;
39