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52 lines
2.4 KiB
52 lines
2.4 KiB
4 months ago
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// RUN: %clang_cc1 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s -DCPP11
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// RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify %s -DCPP17
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// There is no semantic difference between class and typename in a
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// template-parameter. typename followed by an unqualified-id names a
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// template type parameter.
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template<class T> struct X;
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template<typename T> struct X;
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// typename followed by a qualified-id denotes the type in a non-type
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// parameter-declaration.
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template<typename T, typename T::type Value> struct Y0;
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template<typename T, typename X<T>::type Value> struct Y1;
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template<typename T typename U> struct Y2; // expected-error{{expected ',' or '>'}}
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template<typename T U> struct Y3; // expected-error{{expected a qualified name after 'typename'}} expected-error{{expected ',' or '>'}}
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template<typedef T typename U> struct Y4; // expected-error{{expected template parameter}} expected-note {{did you mean to use 'typename'?}} expected-error{{expected ',' or '>'}}
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// A storage class shall not be specified in a template-parameter declaration.
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template<static int Value> struct Z; //expected-error{{invalid declaration specifier}}
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template<typedef int Value> struct Z0; //expected-error{{invalid declaration specifier}}
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template<extern inline int Value> struct Z1; //expected-error2{{invalid declaration specifier}}
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template<virtual int Value> struct Z2; //expected-error{{invalid declaration specifier}}
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template<explicit int Value> struct Z3; //expected-error{{invalid declaration specifier}}
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template<inline int Value> struct Z4; //expected-error{{invalid declaration specifier}}
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template<extern int> struct Z5; //expected-error{{invalid declaration specifier}}
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template<static int> struct Z6; //expected-error{{invalid declaration specifier}}
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template<explicit int Value> struct Z7; //expected-error{{invalid declaration specifier}}
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template<mutable int> struct Z8; //expected-error{{invalid declaration specifier}}
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template<const int> struct Z9; // OK
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template<volatile int> struct Z10; // OK
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#ifdef CPP11
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template<thread_local int> struct Z11; //expected-error{{invalid declaration specifier}}
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template<constexpr int> struct Z12; //expected-error{{invalid declaration specifier}}
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#endif
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#ifdef CPP17
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template<auto> struct Z13; // OK
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#endif
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// Make sure that we properly disambiguate non-type template parameters that
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// start with 'class'.
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class X1 { };
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template<class X1 *xptr> struct X2 { };
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// FIXME: add the example from p2
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