p9-0x.cpp source code [clang_source_code/test/CXX/temp/temp.param/p9-0x.cpp]

1	// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
2
3	// A default template-argument may be specified for any kind of
4	// template-parameter that is not a template parameter pack.
5	template<typename ...Types = int> // expected-error{{template parameter pack cannot have a default argument}}
6	struct X0;
7
8	template<int ...Values = 0> // expected-error{{template parameter pack cannot have a default argument}}
9	struct X1;
10
11	template<typename T> struct vector;
12
13	template<template<class> class ...Templates = vector> // expected-error{{template parameter pack cannot have a default argument}}
14	struct X2;
15
16	struct X3 {
17	template<typename T = int> // expected-error{{default template argument not permitted on a friend template}}
18	friend void f0(X3);
19
20	template<typename T = int>
21	friend void f1(X3) {
22	}
23	};
24
25	namespace PR8748 {
26	// Testcase 1
27	struct A0 { template<typename U> struct B; };
28	template<typename U = int> struct A0::B { };
29
30	// Testcase 2
31	template<typename T> struct A1 { template<typename U> struct B; };
32	template<typename T> template<typename U = int> struct A1<T>::B { }; // expected-error{{cannot add a default template argument to the definition of a member of a class template}}
33
34	// Testcase 3
35	template<typename T>
36	struct X2 {
37	void f0();
38	template<typename U> void f1();
39	};
40
41	template<typename T = int> void X2<T>::f0() { } // expected-error{{cannot add a default template argument to the definition of a member of a class template}}
42	template<typename T> template<typename U = int> void X2<T>::f1() { } // expected-error{{cannot add a default template argument to the definition of a member of a class template}}
43
44	namespace Inner {
45	template<typename T> struct X3;
46	template<typename T> void f2();
47	}
48
49	// Okay; not class members.
50	template<typename T = int> struct Inner::X3 { };
51	template<typename T = int> void Inner::f2() {}
52	}
53
54	namespace PR10069 {
55	template<typename T, T a, T b=0, T c=1>
56	T f(T x);
57
58	void g() {
59	f<unsigned int, 0>(0);
60	}
61	}
62

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