| //===-- Unittests for IntegerSequence -------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/__support/CPP/utility.h" |
| #include "utils/UnitTest/Test.h" |
| |
| using namespace __llvm_libc::cpp; |
| |
| TEST(LlvmLibcIntegerSequencetTest, Basic) { |
| EXPECT_TRUE( |
| (is_same_v<integer_sequence<int>, make_integer_sequence<int, 0>>)); |
| using ISeq = integer_sequence<int, 0, 1, 2, 3>; |
| EXPECT_TRUE((is_same_v<ISeq, make_integer_sequence<int, 4>>)); |
| using LSeq = integer_sequence<long, 0, 1, 2, 3>; |
| EXPECT_TRUE((is_same_v<LSeq, make_integer_sequence<long, 4>>)); |
| using ULLSeq = integer_sequence<unsigned long long, 0ull, 1ull, 2ull, 3ull>; |
| EXPECT_TRUE( |
| (is_same_v<ULLSeq, make_integer_sequence<unsigned long long, 4>>)); |
| } |
| |
| template <typename T, T... Ts> bool checkArray(integer_sequence<T, Ts...> seq) { |
| T arr[sizeof...(Ts)]{Ts...}; |
| |
| for (T i = 0; i < static_cast<T>(sizeof...(Ts)); i++) |
| if (arr[i] != i) |
| return false; |
| |
| return true; |
| } |
| |
| TEST(LlvmLibcIntegerSequencetTest, Many) { |
| EXPECT_TRUE(checkArray(make_integer_sequence<int, 100>{})); |
| } |