| //===-- Unittests for stdc_count_ones_ull ---------------------------------===// |
| // |
| // 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/limits.h" |
| #include "src/stdbit/stdc_count_ones_ull.h" |
| #include "test/UnitTest/Test.h" |
| |
| TEST(LlvmLibcStdcCountOnesUllTest, Zero) { |
| EXPECT_EQ(LIBC_NAMESPACE::stdc_count_ones_ull(0ULL), 0U); |
| } |
| |
| TEST(LlvmLibcStdcCountOnesUllTest, Ones) { |
| for (unsigned i = 0U; i != ULLONG_WIDTH; ++i) |
| EXPECT_EQ(LIBC_NAMESPACE::stdc_count_ones_ull(ULLONG_MAX >> i), |
| ULLONG_WIDTH - i); |
| } |