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Diffstat (limited to 'clang/test/CXX/temp/temp.param/p11-0x.cpp')
-rw-r--r-- | clang/test/CXX/temp/temp.param/p11-0x.cpp | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/clang/test/CXX/temp/temp.param/p11-0x.cpp b/clang/test/CXX/temp/temp.param/p11-0x.cpp new file mode 100644 index 0000000..d2276a3 --- /dev/null +++ b/clang/test/CXX/temp/temp.param/p11-0x.cpp @@ -0,0 +1,81 @@ +// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s + +// If a template-parameter of a class template or alias template has a default +// template-argument, each subsequent template-parameter shall either have a +// default template-argument supplied or be a template parameter pack. +template<typename> struct vector; + +template<typename T = int, typename> struct X3t; // expected-error{{template parameter missing a default argument}} expected-note{{previous default template argument defined here}} +template<typename T = int, typename> using A3t = int; // expected-error{{template parameter missing a default argument}} expected-note{{previous default template argument defined here}} +template<int V = 0, int> struct X3nt; // expected-error{{template parameter missing a default argument}} expected-note{{previous default template argument defined here}} +template<int V = 0, int> using A3nt = int; // expected-error{{template parameter missing a default argument}} expected-note{{previous default template argument defined here}} +template<template<class> class M = vector, template<class> class> struct X3tt; // expected-error{{template parameter missing a default argument}} expected-note{{previous default template argument defined here}} +template<template<class> class M = vector, template<class> class> using A3tt = int; // expected-error{{template parameter missing a default argument}} expected-note{{previous default template argument defined here}} + +template<typename T = int, typename ...Types> struct X2t; +template<typename T = int, typename ...Types> using A2t = X2t<T, Types...>; +template<int V = 0, int ...Values> struct X2nt; +template<int V = 0, int ...Values> using A2nt = X2nt<V, Values...>; +template<template<class> class M = vector, template<class> class... Metas> + struct X2tt; +template<template<class> class M = vector, template<class> class... Metas> + using A2tt = X2tt<M, Metas...>; + +// If a template-parameter of a primary class template or alias template is a +// template parameter pack, it shall be the last template-parameter. +template<typename ...Types, // expected-error{{template parameter pack must be the last template parameter}} + int After, int After2> +struct X0t; +X0t<int> pr9789(); +template<typename ...Types, // expected-error{{template parameter pack must be the last template parameter}} + int After> +using A0t = int; + +template<int ...Values, // expected-error{{template parameter pack must be the last template parameter}} + int After> +struct X0nt; +template<int ...Values, // expected-error{{template parameter pack must be the last template parameter}} + int After> +using A0nt = int; + +template<template<typename> class ...Templates, // expected-error{{template parameter pack must be the last template parameter}} + int After> +struct X0tt; +template<template<typename> class ...Templates, // expected-error{{template parameter pack must be the last template parameter}} + int After> +using A0tt = int; + +// [ Note: These are not requirements for function templates or class +// template partial specializations because template arguments can be +// deduced (14.8.2). -- end note] +template<typename... Types> struct X1t; +template<typename ...Types, typename T> struct X1t<T, Types...> { }; + +template<int... Values> struct X1nt; +template<int ...Values, int V> struct X1nt<V, Values...> { }; + +template<template<int> class... Meta> struct X1tt; +template<template<int> class... Meta, template<int> class M> + struct X1tt<M, Meta...> { }; + +template<typename ...Types, typename T> +void f1t(X1t<T, Types...>); + +template<int ...Values, int V> +void f1nt(X1nt<V, Values...>); + +template<template<int> class... Meta, template<int> class M> +void f1tt(X1tt<M, Meta...>); + +namespace DefaultTemplateArgsInFunction { + template<typename T = int, typename U> T &f0(U) { T *x = 0; return *x; } + + void test_f0() { + int &ir0 = f0(3.14159); + int &ir1 = f0<int>(3.14159); + float &fr0 = f0<float>(3.14159); + } + + template<> int &f0(int*); + template int &f0(double&); +} |