129 lines
5.1 KiB
C++
129 lines
5.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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// Errors
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export class foo { }; // expected-error {{expected template}}
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template x; // expected-error {{C++ requires a type specifier for all declarations}} \
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// expected-error {{does not refer}}
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export template x; // expected-error {{expected '<' after 'template'}}
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export template<class T> class x0; // expected-warning {{exported templates are unsupported}}
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template < ; // expected-error {{expected template parameter}} \
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// expected-error{{expected ',' or '>' in template-parameter-list}} \
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// expected-warning {{declaration does not declare anything}}
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template <int +> struct x1; // expected-error {{expected ',' or '>' in template-parameter-list}}
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// verifies that we only walk to the ',' & still produce errors on the rest of the template parameters
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template <int +, T> struct x2; // expected-error {{expected ',' or '>' in template-parameter-list}} \
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expected-error {{expected unqualified-id}}
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template<template<int+>> struct x3; // expected-error {{expected ',' or '>' in template-parameter-list}} \
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expected-error {{template template parameter requires 'class' after the parameter list}}
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template <template X> struct Err1; // expected-error {{expected '<' after 'template'}} \
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// expected-error{{extraneous}}
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template <template <typename> > struct Err2; // expected-error {{template template parameter requires 'class' after the parameter list}}
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template <template <typename> Foo> struct Err3; // expected-error {{template template parameter requires 'class' after the parameter list}}
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// Template function declarations
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template <typename T> void foo();
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template <typename T, typename U> void foo();
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// Template function definitions.
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template <typename T> void foo() { }
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// Template class (forward) declarations
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template <typename T> struct A;
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template <typename T, typename U> struct b;
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template <typename> struct C;
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template <typename, typename> struct D;
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// Forward declarations with default parameters?
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template <typename T = int> class X1;
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template <typename = int> class X2;
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// Forward declarations w/template template parameters
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template <template <typename> class T> class TTP1;
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template <template <typename> class> class TTP2;
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template <template <typename> class T = foo> class TTP3; // expected-error{{must be a class template}}
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template <template <typename> class = foo> class TTP3; // expected-error{{must be a class template}}
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template <template <typename X, typename Y> class T> class TTP5;
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// Forward declarations with non-type params
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template <int> class NTP0;
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template <int N> class NTP1;
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template <int N = 5> class NTP2;
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template <int = 10> class NTP3;
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template <unsigned int N = 12u> class NTP4;
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template <unsigned int = 12u> class NTP5;
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template <unsigned = 15u> class NTP6;
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template <typename T, T Obj> class NTP7;
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// Template class declarations
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template <typename T> struct A { };
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template <typename T, typename U> struct B { };
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// Template parameter shadowing
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template<typename T, // expected-note{{template parameter is declared here}}
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typename T> // expected-error{{declaration of 'T' shadows template parameter}}
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void shadow1();
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template<typename T> // expected-note{{template parameter is declared here}}
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void shadow2(int T); // expected-error{{declaration of 'T' shadows template parameter}}
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template<typename T> // expected-note{{template parameter is declared here}}
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class T { // expected-error{{declaration of 'T' shadows template parameter}}
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};
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template<int Size> // expected-note{{template parameter is declared here}}
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void shadow3(int Size); // expected-error{{declaration of 'Size' shadows template parameter}}
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// <rdar://problem/6952203>
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template<typename T> // expected-note{{here}}
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struct shadow4 {
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int T; // expected-error{{shadows}}
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};
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template<typename T> // expected-note{{here}}
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struct shadow5 {
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int T(int, float); // expected-error{{shadows}}
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};
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template<typename T, // expected-note{{template parameter is declared here}}
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T T> // expected-error{{declaration of 'T' shadows template parameter}}
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void shadow6();
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template<typename T, // expected-note{{template parameter is declared here}}
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template<typename> class T> // expected-error{{declaration of 'T' shadows template parameter}}
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void shadow7();
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// PR8302
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template<template<typename> class T> struct shadow8 { // expected-note{{template parameter is declared here}}
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template<template<typename> class T> struct inner; // expected-error{{declaration of 'T' shadows template parameter}}
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};
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// Non-type template parameters in scope
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template<int Size>
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void f(int& i) {
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i = Size;
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Size = i; // expected-error{{expression is not assignable}}
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}
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template<typename T>
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const T& min(const T&, const T&);
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void f2() {
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int x;
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A< typeof(x>1) > a;
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}
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// PR3844
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template <> struct S<int> { }; // expected-error{{explicit specialization of non-template struct 'S'}}
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template <> union U<int> { }; // expected-error{{explicit specialization of non-template union 'U'}}
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namespace PR6184 {
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namespace N {
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template <typename T>
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void bar(typename T::x);
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}
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template <typename T>
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void N::bar(typename T::x) { }
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}
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