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libcxx/test/std/utilities/intseq/intseq.make/make_integer_seq.pass.cpp

33 lines
1.6 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.
//
//===----------------------------------------------------------------------===//
// <utility>
// template<class T, T N>
// using make_integer_sequence = integer_sequence<T, 0, 1, ..., N-1>;
// UNSUPPORTED: c++98, c++03, c++11
#include <utility>
#include <type_traits>
#include <cassert>
int main()
{
static_assert(std::is_same<std::make_integer_sequence<int, 0>, std::integer_sequence<int>>::value, "");
static_assert(std::is_same<std::make_integer_sequence<int, 1>, std::integer_sequence<int, 0>>::value, "");
static_assert(std::is_same<std::make_integer_sequence<int, 2>, std::integer_sequence<int, 0, 1>>::value, "");
static_assert(std::is_same<std::make_integer_sequence<int, 3>, std::integer_sequence<int, 0, 1, 2>>::value, "");
static_assert(std::is_same<std::make_integer_sequence<unsigned long long, 0>, std::integer_sequence<unsigned long long>>::value, "");
static_assert(std::is_same<std::make_integer_sequence<unsigned long long, 1>, std::integer_sequence<unsigned long long, 0>>::value, "");
static_assert(std::is_same<std::make_integer_sequence<unsigned long long, 2>, std::integer_sequence<unsigned long long, 0, 1>>::value, "");
static_assert(std::is_same<std::make_integer_sequence<unsigned long long, 3>, std::integer_sequence<unsigned long long, 0, 1, 2>>::value, "");
}