You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
libcxx/test/std/utilities/intseq/intseq.intseq/integer_seq.fail.cpp

41 lines
892 B
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.
//
//===----------------------------------------------------------------------===//
// <utility>
// template<class T, T... I>
// struct integer_sequence
// {
// typedef T type;
//
// static constexpr size_t size() noexcept;
// };
// This test is a conforming extension. The extension turns undefined behavior
// into a compile-time error.
#include <utility>
#include "test_macros.h"
int main()
{
#if TEST_STD_VER > 11
// Should fail to compile, since float is not an integral type
using floatmix = std::integer_sequence<float>;
floatmix::value_type I;
#else
X
#endif // TEST_STD_VER > 11
}