1 //===-- Unittests for stdc_bit_floor_ui -----------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/__support/CPP/limits.h" 10 #include "src/stdbit/stdc_bit_floor_ui.h" 11 #include "test/UnitTest/Test.h" 12 13 TEST(LlvmLibcStdcBitfloorUiTest, Zero) { 14 EXPECT_EQ(LIBC_NAMESPACE::stdc_bit_floor_ui(0U), 0U); 15 } 16 17 TEST(LlvmLibcStdcBitfloorUiTest, Ones) { 18 for (unsigned i = 0U; i != LIBC_NAMESPACE::cpp::numeric_limits<int>::digits; 19 ++i) 20 EXPECT_EQ( 21 LIBC_NAMESPACE::stdc_bit_floor_ui( 22 LIBC_NAMESPACE::cpp::numeric_limits<unsigned int>::max() >> i), 23 1U << (LIBC_NAMESPACE::cpp::numeric_limits<unsigned int>::digits - i - 24 1)); 25 } 26