xref: /minix3/external/bsd/llvm/dist/clang/test/SemaTemplate/instantiate-function-2.cpp (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7)
1f4a2713aSLionel Sambuc // RUN: %clang_cc1 -fsyntax-only -verify %s
2f4a2713aSLionel Sambuc template <typename T> struct S {
SS3f4a2713aSLionel Sambuc   S() { }
4f4a2713aSLionel Sambuc   S(T t);
5f4a2713aSLionel Sambuc };
6f4a2713aSLionel Sambuc 
7f4a2713aSLionel Sambuc template struct S<int>;
8f4a2713aSLionel Sambuc 
f()9f4a2713aSLionel Sambuc void f() {
10f4a2713aSLionel Sambuc   S<int> s1;
11f4a2713aSLionel Sambuc   S<int> s2(10);
12f4a2713aSLionel Sambuc }
13f4a2713aSLionel Sambuc 
14f4a2713aSLionel Sambuc namespace PR7184 {
15f4a2713aSLionel Sambuc   template<typename T>
f()16f4a2713aSLionel Sambuc   void f() {
17f4a2713aSLionel Sambuc     typedef T type;
18f4a2713aSLionel Sambuc     void g(int array[sizeof(type)]);
19f4a2713aSLionel Sambuc   }
20f4a2713aSLionel Sambuc 
21f4a2713aSLionel Sambuc   template void f<int>();
22f4a2713aSLionel Sambuc }
23f4a2713aSLionel Sambuc 
24f4a2713aSLionel Sambuc namespace UsedAttr {
25f4a2713aSLionel Sambuc   template<typename T>
foo()26f4a2713aSLionel Sambuc   void __attribute__((used)) foo() {
27f4a2713aSLionel Sambuc     T *x = 1; // expected-error{{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}}
28f4a2713aSLionel Sambuc   }
29f4a2713aSLionel Sambuc 
bar()30f4a2713aSLionel Sambuc   void bar() {
31f4a2713aSLionel Sambuc     foo<int>(); // expected-note{{instantiation of}}
32f4a2713aSLionel Sambuc   }
33f4a2713aSLionel Sambuc }
34f4a2713aSLionel Sambuc 
35f4a2713aSLionel Sambuc namespace PR9654 {
36f4a2713aSLionel Sambuc   typedef void ftype(int);
37f4a2713aSLionel Sambuc 
38f4a2713aSLionel Sambuc   template<typename T>
39f4a2713aSLionel Sambuc   ftype f;
40f4a2713aSLionel Sambuc 
g()41f4a2713aSLionel Sambuc   void g() {
42f4a2713aSLionel Sambuc     f<int>(0);
43f4a2713aSLionel Sambuc   }
44f4a2713aSLionel Sambuc }
45f4a2713aSLionel Sambuc 
46f4a2713aSLionel Sambuc namespace AliasTagDef {
47f4a2713aSLionel Sambuc   template<typename T>
f()48f4a2713aSLionel Sambuc   T f() {
49f4a2713aSLionel Sambuc     using S = struct { // expected-warning {{C++11}}
50f4a2713aSLionel Sambuc       T g() {
51f4a2713aSLionel Sambuc         return T();
52f4a2713aSLionel Sambuc       }
53f4a2713aSLionel Sambuc     };
54f4a2713aSLionel Sambuc     return S().g();
55f4a2713aSLionel Sambuc   }
56f4a2713aSLionel Sambuc 
57f4a2713aSLionel Sambuc   int n = f<int>();
58f4a2713aSLionel Sambuc }
59f4a2713aSLionel Sambuc 
60f4a2713aSLionel Sambuc namespace PR10273 {
61f4a2713aSLionel Sambuc   template<typename T> void (f)(T t) {}
62f4a2713aSLionel Sambuc 
g()63f4a2713aSLionel Sambuc   void g() {
64f4a2713aSLionel Sambuc     (f)(17);
65f4a2713aSLionel Sambuc   }
66f4a2713aSLionel Sambuc }
67*0a6a1f1dSLionel Sambuc 
68*0a6a1f1dSLionel Sambuc namespace rdar15464547 {
69*0a6a1f1dSLionel Sambuc   class A {
70*0a6a1f1dSLionel Sambuc     A();
71*0a6a1f1dSLionel Sambuc   };
72*0a6a1f1dSLionel Sambuc 
73*0a6a1f1dSLionel Sambuc   template <typename R> class B {
74*0a6a1f1dSLionel Sambuc   public:
75*0a6a1f1dSLionel Sambuc     static void meth1();
76*0a6a1f1dSLionel Sambuc     static void meth2();
77*0a6a1f1dSLionel Sambuc   };
78*0a6a1f1dSLionel Sambuc 
A()79*0a6a1f1dSLionel Sambuc   A::A() {
80*0a6a1f1dSLionel Sambuc     extern int compile_time_assert_failed;
81*0a6a1f1dSLionel Sambuc     B<int>::meth2();
82*0a6a1f1dSLionel Sambuc   }
83*0a6a1f1dSLionel Sambuc 
meth1()84*0a6a1f1dSLionel Sambuc   template <typename R> void B<R>::meth1() {
85*0a6a1f1dSLionel Sambuc     extern int compile_time_assert_failed;
86*0a6a1f1dSLionel Sambuc   }
87*0a6a1f1dSLionel Sambuc 
meth2()88*0a6a1f1dSLionel Sambuc   template <typename R> void B<R>::meth2() {
89*0a6a1f1dSLionel Sambuc     extern int compile_time_assert_failed;
90*0a6a1f1dSLionel Sambuc   }
91*0a6a1f1dSLionel Sambuc }
92