141 lines
3.8 KiB
C++
141 lines
3.8 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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template<typename T> class A;
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extern "C++" {
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template<typename T> class B;
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}
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namespace N {
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template<typename T> class C;
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}
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extern "C" {
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template<typename T> class D; // expected-error{{templates must have C++ linkage}}
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}
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template<class U> class A; // expected-note{{previous template declaration is here}}
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template<int N> class A; // expected-error{{template parameter has a different kind in template redeclaration}}
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template<int N> class NonTypeTemplateParm;
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typedef int INT;
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template<INT M> class NonTypeTemplateParm; // expected-note{{previous non-type template parameter with type 'INT' (aka 'int') is here}}
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template<long> class NonTypeTemplateParm; // expected-error{{template non-type parameter has a different type 'long' in template redeclaration}}
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template<template<typename T> class X> class TemplateTemplateParm;
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template<template<class> class Y> class TemplateTemplateParm; // expected-note{{previous template declaration is here}} \
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// expected-note{{previous template template parameter is here}}
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template<typename> class TemplateTemplateParm; // expected-error{{template parameter has a different kind in template redeclaration}}
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template<template<typename T, int> class X> class TemplateTemplateParm; // expected-error{{too many template parameters in template template parameter redeclaration}}
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template<typename T>
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struct test {}; // expected-note{{previous definition}}
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template<typename T>
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struct test : T {}; // expected-error{{redefinition}}
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class X {
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public:
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template<typename T> class C;
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};
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void f() {
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template<typename T> class X; // expected-error{{expression}}
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}
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template<typename T> class X1 var; // expected-warning{{variable templates are a C++1y extension}} \
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// expected-error {{variable has incomplete type 'class X1'}} \
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// expected-note {{forward declaration of 'X1'}}
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namespace M {
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}
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template<typename T> class M::C3 { }; // expected-error{{out-of-line definition of 'C3' does not match any declaration in namespace 'M'}}
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namespace PR8001 {
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template<typename T1>
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struct Foo {
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template<typename T2> class Bar;
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typedef Bar<T1> Baz;
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template<typename T2>
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struct Bar {
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Bar() {}
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};
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};
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void pr8001() {
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Foo<int>::Baz x;
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Foo<int>::Bar<int> y(x);
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}
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}
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namespace rdar9676205 {
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template <unsigned, class _Tp> class tuple_element;
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template <class _T1, class _T2> class pair;
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template <class _T1, class _T2>
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class tuple_element<0, pair<_T1, _T2> >
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{
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template <class _Tp>
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struct X
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{
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template <class _Up, bool = X<_Up>::value>
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struct Y
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: public X<_Up>,
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public Y<_Up>
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{ };
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};
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};
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}
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namespace redecl {
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int A; // expected-note {{here}}
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template<typename T> struct A; // expected-error {{different kind of symbol}}
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int B; // expected-note {{here}}
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template<typename T> struct B { // expected-error {{different kind of symbol}}
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};
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template<typename T> struct F;
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template<typename T> struct K;
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int G, H; // expected-note {{here}}
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struct S {
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int C; // expected-note {{here}}
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template<typename T> struct C; // expected-error {{different kind of symbol}}
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int D; // expected-note {{here}}
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template<typename T> struct D { // expected-error {{different kind of symbol}}
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};
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int E;
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template<typename T> friend struct E { // expected-error {{cannot define a type in a friend}}
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};
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int F;
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template<typename T> friend struct F; // ok, redecl::F
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template<typename T> struct G; // ok
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template<typename T> friend struct H; // expected-error {{different kind of symbol}}
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int I, J, K;
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struct U {
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template<typename T> struct I; // ok
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template<typename T> struct J { // ok
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};
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template<typename T> friend struct K; // ok, redecl::K
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};
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};
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}
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