47 lines
2.4 KiB
C++
47 lines
2.4 KiB
C++
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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
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struct S {
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template <typename Ty = char>
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static_assert(sizeof(Ty) != 1, "Not a char"); // expected-error {{a static_assert declaration cannot be a template}}
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};
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template <typename Ty = char>
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static_assert(sizeof(Ty) != 1, "Not a char"); // expected-error {{a static_assert declaration cannot be a template}}
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namespace Ellipsis {
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template<typename ...T> void f(T t..., int n); // expected-error {{must immediately precede declared identifier}}
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template<typename ...T> void f(int n, T t...); // expected-error {{must immediately precede declared identifier}}
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template<typename ...T> void f(int n, T t, ...); // expected-error {{unexpanded parameter pack}}
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template<typename ...T> void f() {
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f([]{
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void g(T
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t // expected-note {{place '...' immediately before declared identifier to declare a function parameter pack}}
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... // expected-warning {{'...' in this location creates a C-style varargs function, not a function parameter pack}}
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// expected-note@-1 {{insert ',' before '...' to silence this warning}}
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);
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void h(T (&
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) // expected-note {{place '...' here to declare a function parameter pack}}
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... // expected-warning {{'...' in this location creates a C-style varargs function, not a function parameter pack}}
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// expected-note@-1 {{insert ',' before '...' to silence this warning}}
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);
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void i(T (&), ...);
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}...);
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}
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template<typename ...T> struct S {
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void f(T t...); // expected-error {{must immediately precede declared identifier}}
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void f(T ... // expected-note {{preceding '...' declares a function parameter pack}}
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t...); // expected-warning-re {{'...' in this location creates a C-style varargs function{{$}}}}
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// expected-note@-1 {{insert ',' before '...' to silence this warning}}
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};
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// FIXME: We should just issue a single error in this case pointing out where
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// the '...' goes. It's tricky to recover correctly in this case, though,
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// because the parameter is in scope in the default argument, so must be
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// passed to Sema before we reach the ellipsis.
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template<typename...T> void f(T n = 1 ...);
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// expected-warning@-1 {{creates a C-style varargs}}
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// expected-note@-2 {{place '...' immediately before declared identifier}}
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// expected-note@-3 {{insert ','}}
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// expected-error@-4 {{unexpanded parameter pack}}
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}
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