b64f8b07c1
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119395 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// type_traits
|
|
|
|
// is_base_of
|
|
|
|
#include <type_traits>
|
|
|
|
template <class T, class U>
|
|
void test_is_base_of()
|
|
{
|
|
static_assert((std::is_base_of<T, U>::value), "");
|
|
static_assert((std::is_base_of<const T, U>::value), "");
|
|
static_assert((std::is_base_of<T, const U>::value), "");
|
|
static_assert((std::is_base_of<const T, const U>::value), "");
|
|
}
|
|
|
|
template <class T, class U>
|
|
void test_is_not_base_of()
|
|
{
|
|
static_assert((!std::is_base_of<T, U>::value), "");
|
|
}
|
|
|
|
struct B {};
|
|
struct B1 : B {};
|
|
struct B2 : B {};
|
|
struct D : private B1, private B2 {};
|
|
|
|
int main()
|
|
{
|
|
test_is_base_of<B, D>();
|
|
test_is_base_of<B1, D>();
|
|
test_is_base_of<B2, D>();
|
|
test_is_base_of<B, B1>();
|
|
test_is_base_of<B, B2>();
|
|
test_is_base_of<B, B>();
|
|
|
|
test_is_not_base_of<D, B>();
|
|
test_is_not_base_of<B&, D&>();
|
|
test_is_not_base_of<B[3], D[3]>();
|
|
test_is_not_base_of<int, int>();
|
|
test_is_not_base_of<int, int>();
|
|
}
|