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// RUN: %clang_cc1 -std=c++2a -verify %s
template<typename T, typename U>
constexpr static bool is_same_v = false;
template<typename T>
constexpr static bool is_same_v<T, T> = true;
template<typename T>
concept AtLeast2 = sizeof(T) >= 2;
template<typename T>
concept AtMost8 = sizeof(T) <= 8;
int foo() requires AtLeast2<long> && AtMost8<long> {
return 0;
}
double foo() requires AtLeast2<char> {
return 0.0;
}
char bar() requires AtLeast2<char> { // expected-note {{possible target for call}}
return 1.0;
}
short bar() requires AtLeast2<long> && AtMost8<long> {
// expected-note@-1{{possible target for call}}
// expected-note@-2{{candidate function}}
return 0.0;
}
int bar() requires AtMost8<long> && AtLeast2<long> {
// expected-note@-1{{possible target for call}}
// expected-note@-2{{candidate function}}
return 0.0;
}
char baz() requires AtLeast2<char> {
return 1.0;
}
short baz() requires AtLeast2<long> && AtMost8<long> {
return 0.0;
}
int baz() requires AtMost8<long> && AtLeast2<long> {
return 0.0;
}
long baz() requires AtMost8<long> && AtLeast2<long> && AtLeast2<short> {
return 3.0;
}
void a() {
static_assert(is_same_v<decltype(&foo), int(*)()>);
static_assert(is_same_v<decltype(&bar), long(*)()>);
// expected-error@-1{{reference to overloaded function could not be resolved; did you mean to call it with no arguments?}}
// expected-error@-2{{call to 'bar' is ambiguous}}
static_assert(is_same_v<decltype(&baz), long(*)()>);
}
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