475 lines
10 KiB
C
475 lines
10 KiB
C
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// Header for PCH test cxx-templates.cpp
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template <typename T1, typename T2>
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struct S;
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template <typename T1, typename T2>
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struct S {
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S() { }
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static void templ();
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};
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template <typename T>
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struct S<int, T> {
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static void partial();
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};
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template <>
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struct S<int, float> {
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static void explicit_special();
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};
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template <int x>
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int tmpl_f2() { return x; }
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template <typename T, int y>
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T templ_f(T x) {
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int z = templ_f<int, 5>(3);
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z = tmpl_f2<y+2>();
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T data[y];
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return x+y;
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}
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void govl(int);
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void govl(char);
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template <typename T>
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struct Unresolv {
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void f() {
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govl(T());
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}
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};
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template <typename T>
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struct Dep {
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typedef typename T::type Ty;
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void f() {
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Ty x = Ty();
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T::my_f();
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int y = T::template my_templf<int>(0);
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ovl(y);
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}
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void ovl(int);
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void ovl(float);
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};
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template<typename T, typename A1>
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inline T make_a(const A1& a1) {
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T::depend_declref();
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return T(a1);
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}
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template <class T> class UseBase {
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void foo();
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typedef int bar;
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};
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template <class T> class UseA : public UseBase<T> {
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using UseBase<T>::foo;
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using typename UseBase<T>::bar;
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};
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template <class T> class Sub : public UseBase<int> { };
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template <class _Ret, class _Tp>
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class mem_fun_t
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{
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public:
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explicit
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mem_fun_t(_Ret (_Tp::*__pf)())
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{}
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private:
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_Ret (_Tp::*_M_f)();
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};
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template<unsigned N>
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bool isInt(int x);
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template<> bool isInt<8>(int x) {
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try { ++x; } catch(...) { --x; }
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return true;
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}
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template<typename _CharT>
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int __copy_streambufs_eof(_CharT);
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class basic_streambuf
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{
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void m() { }
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friend int __copy_streambufs_eof<>(int);
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};
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// PR 7660
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template<typename T> struct S_PR7660 { void g(void (*)(T)); };
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template<> void S_PR7660<int>::g(void(*)(int)) {}
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// PR 7670
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template<typename> class C_PR7670;
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template<> class C_PR7670<int>;
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template<> class C_PR7670<int>;
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template <bool B>
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struct S2 {
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static bool V;
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};
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extern template class S2<true>;
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template <typename T>
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struct S3 {
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void m();
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};
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template <typename T>
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inline void S3<T>::m() { }
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template <typename T>
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struct S4 {
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void m() { }
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};
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extern template struct S4<int>;
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void S4ImplicitInst() {
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S4<int> s;
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s.m();
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}
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struct S5 {
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S5(int x);
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};
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struct TS5 {
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S5 s;
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template <typename T>
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TS5(T y) : s(y) {}
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};
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// PR 8134
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template<class T> void f_PR8134(T);
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template<class T> void f_PR8134(T);
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void g_PR8134() { f_PR8134(0); f_PR8134('x'); }
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// rdar8580149
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template <typename T>
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struct S6;
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template <typename T, unsigned N>
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struct S6<const T [N]>
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{
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private:
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typedef const T t1[N];
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public:
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typedef t1& t2;
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};
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template<typename T>
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struct S7;
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template<unsigned N>
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struct S7<int[N]> : S6<const int[N]> { };
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// Zero-length template argument lists
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namespace ZeroLengthExplicitTemplateArgs {
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template<typename T> void h();
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struct Y {
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template<typename T> void f();
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};
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template<typename T>
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void f(T *ptr) {
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T::template g<>(17);
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ptr->template g2<>(17);
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h<T>();
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h<int>();
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Y y;
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y.f<int>();
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}
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struct X {
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template<typename T> static void g(T);
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template<typename T> void g2(T);
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};
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}
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namespace NonTypeTemplateParmContext {
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template<typename T, int inlineCapacity = 0> class Vector { };
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struct String {
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template<int inlineCapacity>
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static String adopt(Vector<char, inlineCapacity>&);
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};
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template<int inlineCapacity>
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inline bool equalIgnoringNullity(const Vector<char, inlineCapacity>& a, const String& b) { return false; }
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}
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// <rdar://problem/11112464>
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template< typename > class Foo;
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template< typename T >
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class Foo : protected T
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{
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public:
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Foo& operator=( const Foo& other );
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};
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template<typename...A> struct NestedExpansion {
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template<typename...B> auto f(A...a, B...b) -> decltype(g(a + b...));
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};
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template struct NestedExpansion<char, char, char>;
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namespace rdar13135282 {
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template < typename _Alloc >
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void foo(_Alloc = _Alloc());
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template < bool > class __pool;
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template < template < bool > class _PoolTp >
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struct __common_pool {
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typedef _PoolTp < 0 > pool_type;
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};
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template < template < bool > class _PoolTp >
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struct __common_pool_base : __common_pool < _PoolTp > {};
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template < template < bool > class _PoolTp >
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struct A : __common_pool_base < _PoolTp > {};
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template < typename _Poolp = A < __pool > >
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struct __mt_alloc {
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typedef typename _Poolp::pool_type __pool_type;
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__mt_alloc() {
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foo<__mt_alloc<> >();
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}
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};
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}
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namespace PR13020 {
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template<typename T>
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void f() {
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enum E {
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enumerator
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};
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T t = enumerator;
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}
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template void f<int>();
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}
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template<typename T> void doNotDeserialize() {}
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template<typename T> struct ContainsDoNotDeserialize {
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static int doNotDeserialize;
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};
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template<typename T> struct ContainsDoNotDeserialize2 {
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static void doNotDeserialize();
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};
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template<typename T> int ContainsDoNotDeserialize<T>::doNotDeserialize = 0;
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template<typename T> void ContainsDoNotDeserialize2<T>::doNotDeserialize() {}
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template<typename T> void DependentSpecializedFunc(T x) { x.foo(); }
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template<typename T> class DependentSpecializedFuncClass {
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void foo() {}
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friend void DependentSpecializedFunc<>(DependentSpecializedFuncClass);
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};
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namespace cyclic_module_load {
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// Reduced from a libc++ modules crasher.
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namespace std {
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template<class> class mask_array;
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template<class> class valarray {
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public:
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valarray(const valarray &v);
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};
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class gslice {
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valarray<int> x;
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valarray<int> stride() const { return x; }
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};
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template<class> class mask_array {
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template<class> friend class valarray;
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};
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}
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}
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namespace local_extern {
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template<typename T> int f() {
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extern int arr[3];
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{
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extern T arr;
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return sizeof(arr);
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}
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}
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template<typename T> int g() {
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extern int arr[3];
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extern T arr;
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return sizeof(arr);
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}
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}
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namespace rdar15468709a {
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template<typename> struct decay {};
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template<typename FooParamTy> auto foo(FooParamTy fooParam) -> decltype(fooParam);
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template<typename BarParamTy> auto bar(BarParamTy barParam) -> decay<decltype(barParam)>;
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struct B {};
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void crash() {
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B some;
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bar(some);
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}
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}
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namespace rdar15468709b {
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template<typename> struct decay {};
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template<typename... Foos> int returnsInt(Foos... foos);
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template<typename... FooParamTy> auto foo(FooParamTy... fooParam) -> decltype(returnsInt(fooParam...));
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template<typename... BarParamTy> auto bar(BarParamTy... barParam) -> decay<decltype(returnsInt(barParam...))>;
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struct B {};
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void crash() {
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B some;
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bar(some);
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}
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}
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namespace rdar15468709c {
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template<typename> struct decay {};
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template<class... Foos> int returnsInt(Foos... foos);
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template<typename FooParamTy> void foo(FooParamTy fooParam) { decltype(fooParam) a; }
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template<typename BarParamTy> auto bar(BarParamTy barParam) -> decay<decltype(barParam)>;
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struct B {};
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void crash() {
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B some;
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bar(some);
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}
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}
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namespace MemberSpecializationLocation {
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template<typename T> struct A { static int n; };
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}
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// https://bugs.llvm.org/show_bug.cgi?id=34728
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namespace PR34728 {
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// case 1: defaulted `NonTypeTemplateParmDecl`, non-defaulted 2nd tpl param
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template <int foo = 10, class T>
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int func1(T const &);
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template <int foo, class T>
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int func1(T const &) {
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return foo;
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}
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// case 2: defaulted `TemplateTypeParmDecl`, non-defaulted 2nd tpl param
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template <class A = int, class B>
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A func2(B const &);
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template <class A, class B>
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A func2(B const &) {
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return A(20.0f);
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}
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// case 3: defaulted `TemplateTemplateParmDecl`, non-defaulted 2nd tpl param
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template <class T>
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struct Container { T const &item; };
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template <template <class> class C = Container, class D>
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C<D> func3(D const &);
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template <template <class> class C, class D>
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C<D> func3(D const &d) {
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return Container<D>{d};
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}
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} // end namespace PR34728
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namespace ClassScopeExplicitSpecializations {
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template<int> struct A {
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template<int> constexpr int f() const { return 1; }
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template<> constexpr int f<0>() const { return 2; }
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};
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template<> template<int> constexpr int A<0>::f() const { return 3; }
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template<> template<> constexpr int A<0>::f<0>() const { return 4; }
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template<> template<> constexpr int A<0>::f<1>() const { return 5; }
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Winstantiation-after-specialization"
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template int A<2>::f<0>() const;
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#pragma clang diagnostic pop
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template int A<2>::f<1>() const;
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extern template int A<3>::f<0>() const;
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extern template int A<3>::f<1>() const;
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template<int> struct B {
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template<typename> static const int v = 1;
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template<typename T> static const int v<T*> = 2;
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template<> static const int v<int> = 3;
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|
template<typename> static constexpr int w = 1;
|
||
|
|
template<typename T> static constexpr int w<T*> = 2;
|
||
|
|
template<> static constexpr int w<int> = 3;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<> template<typename> constexpr int B<0>::v = 4;
|
||
|
|
template<> template<typename T> constexpr int B<0>::v<T*> = 5;
|
||
|
|
template<> template<typename T> constexpr int B<0>::v<T&> = 6;
|
||
|
|
// This is ill-formed: the initializer of v<int> is instantiated with the
|
||
|
|
// class.
|
||
|
|
//template<> template<> constexpr int B<0>::v<int> = 7;
|
||
|
|
template<> template<> constexpr int B<0>::v<float> = 8;
|
||
|
|
|
||
|
|
template<> template<typename> constexpr int B<0>::w = 4;
|
||
|
|
template<> template<typename T> constexpr int B<0>::w<T*> = 5;
|
||
|
|
template<> template<typename T> constexpr int B<0>::w<T&> = 6;
|
||
|
|
template<> template<> constexpr int B<0>::w<int> = 7;
|
||
|
|
template<> template<> constexpr int B<0>::w<float> = 8;
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace DependentMemberExpr {
|
||
|
|
struct Base {
|
||
|
|
constexpr int setstate() { return 0; }
|
||
|
|
};
|
||
|
|
template<typename T> struct A : Base {
|
||
|
|
constexpr int f() { return Base::setstate(); }
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace DependentTemplateName {
|
||
|
|
template <template <class> class Template>
|
||
|
|
struct TakesClassTemplate {};
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
TakesClassTemplate<T::template Member> getWithIdentifier();
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace ClassTemplateCycle {
|
||
|
|
// Create a cycle: the typedef T refers to A<0, 8>, whose template argument
|
||
|
|
// list refers back to T.
|
||
|
|
template<int, int> struct A;
|
||
|
|
using T = A<0, sizeof(void*)>;
|
||
|
|
template<int N> struct A<N, sizeof(T*)> {};
|
||
|
|
T t;
|
||
|
|
|
||
|
|
// Create a cycle: the variable M refers to A<1, 1>, whose template argument
|
||
|
|
// list list refers back to M.
|
||
|
|
template<int, int> struct A;
|
||
|
|
const decltype(sizeof(A<1, 1>*)) M = 1;
|
||
|
|
template<int N> struct A<N, M> {};
|
||
|
|
A<1, 1> u;
|
||
|
|
}
|