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.
51 lines
2.5 KiB
C++
51 lines
2.5 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
|
|
|
|
// template <class T>
|
|
// constexpr T ceil2(T x) noexcept;
|
|
|
|
// Remarks: This function shall not participate in overload resolution unless
|
|
// T is an unsigned integer type
|
|
|
|
#include <bit>
|
|
#include <cstdint>
|
|
#include <limits>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
|
|
class A{};
|
|
enum E1 : unsigned char { rEd };
|
|
enum class E2 : unsigned char { red };
|
|
|
|
template <typename T>
|
|
constexpr bool toobig()
|
|
{
|
|
return 0 == std::ceil2(std::numeric_limits<T>::max());
|
|
}
|
|
|
|
int main()
|
|
{
|
|
// Make sure we generate a compile-time error for UB
|
|
static_assert(toobig<unsigned char>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<unsigned short>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<unsigned>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<unsigned long>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<unsigned long long>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
|
|
static_assert(toobig<uint8_t>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<uint16_t>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<uint32_t>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<uint64_t>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<size_t>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<uintmax_t>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
static_assert(toobig<uintptr_t>(), ""); // expected-error {{static_assert expression is not an integral constant expression}}
|
|
}
|