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Diffstat (limited to 'clang/test/Parser/cxx-template-decl.cpp')
-rw-r--r-- | clang/test/Parser/cxx-template-decl.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/clang/test/Parser/cxx-template-decl.cpp b/clang/test/Parser/cxx-template-decl.cpp new file mode 100644 index 0000000..7e931a3 --- /dev/null +++ b/clang/test/Parser/cxx-template-decl.cpp @@ -0,0 +1,115 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s + +// Errors +export class foo { }; // expected-error {{expected template}} +template x; // expected-error {{C++ requires a type specifier for all declarations}} \ + // expected-error {{does not refer}} +export template x; // expected-error {{expected '<' after 'template'}} +export template<class T> class x0; // expected-warning {{exported templates are unsupported}} +template < ; // expected-error {{expected template parameter}} \ +// expected-error{{expected ',' or '>' in template-parameter-list}} \ +// expected-warning {{declaration does not declare anything}} +template <int +> struct x1; // expected-error {{expected ',' or '>' in template-parameter-list}} + +// verifies that we only walk to the ',' & still produce errors on the rest of the template parameters +template <int +, T> struct x2; // expected-error {{expected ',' or '>' in template-parameter-list}} \ + expected-error {{expected unqualified-id}} +template<template<int+>> struct x3; // expected-error {{expected ',' or '>' in template-parameter-list}} \ + expected-error {{template template parameter requires 'class' after the parameter list}} +template <template X> struct Err1; // expected-error {{expected '<' after 'template'}} \ +// expected-error{{extraneous}} +template <template <typename> > struct Err2; // expected-error {{template template parameter requires 'class' after the parameter list}} +template <template <typename> Foo> struct Err3; // expected-error {{template template parameter requires 'class' after the parameter list}} + +// Template function declarations +template <typename T> void foo(); +template <typename T, typename U> void foo(); + +// Template function definitions. +template <typename T> void foo() { } + +// Template class (forward) declarations +template <typename T> struct A; +template <typename T, typename U> struct b; +template <typename> struct C; +template <typename, typename> struct D; + +// Forward declarations with default parameters? +template <typename T = int> class X1; +template <typename = int> class X2; + +// Forward declarations w/template template parameters +template <template <typename> class T> class TTP1; +template <template <typename> class> class TTP2; +template <template <typename> class T = foo> class TTP3; // expected-error{{must be a class template}} +template <template <typename> class = foo> class TTP3; // expected-error{{must be a class template}} +template <template <typename X, typename Y> class T> class TTP5; + +// Forward declarations with non-type params +template <int> class NTP0; +template <int N> class NTP1; +template <int N = 5> class NTP2; +template <int = 10> class NTP3; +template <unsigned int N = 12u> class NTP4; +template <unsigned int = 12u> class NTP5; +template <unsigned = 15u> class NTP6; +template <typename T, T Obj> class NTP7; + +// Template class declarations +template <typename T> struct A { }; +template <typename T, typename U> struct B { }; + +// Template parameter shadowing +template<typename T, // expected-note{{template parameter is declared here}} + typename T> // expected-error{{declaration of 'T' shadows template parameter}} + void shadow1(); + +template<typename T> // expected-note{{template parameter is declared here}} +void shadow2(int T); // expected-error{{declaration of 'T' shadows template parameter}} + +template<typename T> // expected-note{{template parameter is declared here}} +class T { // expected-error{{declaration of 'T' shadows template parameter}} +}; + +template<int Size> // expected-note{{template parameter is declared here}} +void shadow3(int Size); // expected-error{{declaration of 'Size' shadows template parameter}} + +// <rdar://problem/6952203> +template<typename T> // expected-note{{here}} +struct shadow4 { + int T; // expected-error{{shadows}} +}; + +template<typename T> // expected-note{{here}} +struct shadow5 { + int T(int, float); // expected-error{{shadows}} +}; + +// Non-type template parameters in scope +template<int Size> +void f(int& i) { + i = Size; + Size = i; // expected-error{{expression is not assignable}} +} + +template<typename T> +const T& min(const T&, const T&); + +void f2() { + int x; + A< typeof(x>1) > a; +} + + +// PR3844 +template <> struct S<int> { }; // expected-error{{explicit specialization of non-template struct 'S'}} + +namespace PR6184 { + namespace N { + template <typename T> + void bar(typename T::x); + } + + template <typename T> + void N::bar(typename T::x) { } +} |