59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
// RUN: %clang_cc1 -std=c++2a -verify %s
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template<typename T, typename U>
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constexpr static bool is_same_v = false;
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template<typename T>
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constexpr static bool is_same_v<T, T> = true;
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template<typename T>
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concept AtLeast2 = sizeof(T) >= 2;
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template<typename T>
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concept AtMost8 = sizeof(T) <= 8;
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template<typename T>
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struct S {
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static int foo() requires AtLeast2<long> && AtMost8<long> {
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return 0;
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}
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static double foo() requires AtLeast2<char> {
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return 0.0;
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}
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static char bar() requires AtLeast2<char> {
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return 1.0;
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}
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static short bar() requires AtLeast2<long> && AtMost8<long> {
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return 0.0;
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}
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static int bar() requires AtMost8<long> && AtLeast2<long> {
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return 0.0;
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}
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static char baz() requires AtLeast2<char> {
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return 1.0;
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}
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static short baz() requires AtLeast2<long> && AtMost8<long> {
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return 0.0;
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}
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static int baz() requires AtMost8<long> && AtLeast2<long> {
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return 0.0;
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}
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static long baz() requires AtMost8<long> && AtLeast2<long> && AtLeast2<short> {
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return 3.0;
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}
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};
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void a() {
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static_assert(is_same_v<decltype(&S<int>::foo), int(*)()>);
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static_assert(is_same_v<decltype(&S<int>::bar), long(*)()>);
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// expected-error@-1{{reference to overloaded function could not be resolved; did you mean to call it?}}
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static_assert(is_same_v<decltype(&S<int>::baz), long(*)()>);
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}
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