diff options
Diffstat (limited to 'test/Parser/cxx2a-concept-declaration.cpp')
-rw-r--r-- | test/Parser/cxx2a-concept-declaration.cpp | 61 |
1 files changed, 44 insertions, 17 deletions
diff --git a/test/Parser/cxx2a-concept-declaration.cpp b/test/Parser/cxx2a-concept-declaration.cpp index d80b3db428..a2362526a2 100644 --- a/test/Parser/cxx2a-concept-declaration.cpp +++ b/test/Parser/cxx2a-concept-declaration.cpp @@ -14,8 +14,6 @@ template<template<typename> concept T> concept D2 = true; // expected-error@-2{{template template parameter requires 'class' after the parameter list}} // expected-error@-3{{concept template parameter list must have at least one parameter; explicit specialization of concepts is not allowed}} -template<typename T> concept C2 = 0.f; // expected-error {{constraint expression must be of type 'bool' but is of type 'float'}} - struct S1 { template<typename T> concept C1 = true; // expected-error {{concept declarations may only appear in global or namespace scope}} }; @@ -26,15 +24,15 @@ extern "C++" { template<typename A> template<typename B> -concept C4 = true; // expected-error {{extraneous template parameter list in concept definition}} +concept C2 = true; // expected-error {{extraneous template parameter list in concept definition}} -template<typename T> concept C5 = true; // expected-note {{previous}} expected-note {{previous}} -int C5; // expected-error {{redefinition}} -struct C5 {}; // expected-error {{redefinition}} +template<typename T> concept C3 = true; // expected-note {{previous}} expected-note {{previous}} +int C3; // expected-error {{redefinition}} +struct C3 {}; // expected-error {{redefinition}} -struct C6 {}; // expected-note{{previous definition is here}} -template<typename T> concept C6 = true; -// expected-error@-1{{redefinition of 'C6' as different kind of symbol}} +struct C4 {}; // expected-note{{previous definition is here}} +template<typename T> concept C4 = true; +// expected-error@-1{{redefinition of 'C4' as different kind of symbol}} // TODO: Add test to prevent explicit specialization, partial specialization // and explicit instantiation of concepts. @@ -43,31 +41,60 @@ template<typename T, T v> struct integral_constant { static constexpr T value = v; }; namespace N { - template<typename T> concept C7 = true; + template<typename T> concept C5 = true; } -using N::C7; +using N::C5; -template <bool word> concept C8 = integral_constant<bool, wor>::value; +template <bool word> concept C6 = integral_constant<bool, wor>::value; // expected-error@-1{{use of undeclared identifier 'wor'; did you mean 'word'?}} // expected-note@-2{{'word' declared here}} -template<typename T> concept bool C9 = true; +template<typename T> concept bool C7 = true; // expected-warning@-1{{ISO C++2a does not permit the 'bool' keyword after 'concept'}} -template<> concept C10 = false; +template<> concept C8 = false; // expected-error@-1{{concept template parameter list must have at least one parameter; explicit specialization of concepts is not allowed}} -template<> concept C9<int> = false; +template<> concept C7<int> = false; // expected-error@-1{{name defined in concept definition must be an identifier}} -template<typename T> concept N::C11 = false; +template<typename T> concept N::C9 = false; // expected-error@-1{{name defined in concept definition must be an identifier}} class A { }; // expected-note@-1{{'A' declared here}} -template<typename T> concept A::C12 = false; +template<typename T> concept A::C10 = false; // expected-error@-1{{expected namespace name}} template<typename T> concept operator int = false; // expected-error@-1{{name defined in concept definition must be an identifier}} + +template<bool x> concept C11 = 2; // expected-error {{atomic constraint must be of type 'bool' (found 'int')}} +template<bool x> concept C12 = 2 && x; // expected-error {{atomic constraint must be of type 'bool' (found 'int')}} +template<bool x> concept C13 = x || 2 || x; // expected-error {{atomic constraint must be of type 'bool' (found 'int')}} +template<bool x> concept C14 = 8ull && x || x; // expected-error {{atomic constraint must be of type 'bool' (found 'unsigned long long')}} +template<typename T> concept C15 = sizeof(T); // expected-error {{atomic constraint must be of type 'bool'}} +template<typename T> concept C16 = true && (0 && 0); // expected-error {{atomic constraint must be of type 'bool' (found 'int')}} +// expected-warning@-1{{use of logical '&&' with constant operand}} +// expected-note@-2{{use '&' for a bitwise operation}} +// expected-note@-3{{remove constant to silence this warning}} +template<typename T> concept C17 = T{}; +static_assert(!C17<bool>); +template<typename T> concept C18 = (bool&&)true; +static_assert(C18<int>); +template<typename T> concept C19 = (const bool&)true; +static_assert(C19<int>); +template<typename T> concept C20 = (const bool)true; +static_assert(C20<int>); +template <bool c> concept C21 = integral_constant<bool, c>::value && true; +static_assert(C21<true>); +static_assert(!C21<false>); +template <bool c> concept C22 = integral_constant<bool, c>::value; +static_assert(C22<true>); +static_assert(!C22<false>); + +template <bool word> concept C23 = integral_constant<bool, wor>::value; +// expected-error@-1{{use of undeclared identifier 'wor'; did you mean 'word'?}} +// expected-note@-2{{'word' declared here}} + |