llvm-project/libc/test/src/stdbit/stdc_trailing_ones_uc_test.cpp
Nick Desaulniers b8ba266820
[libc][test][stdbit] fix -Wimplicit-int-conversion (#126616)
When cross compiling the libc-stdbit-tests, the existing tests trigger numerous
instances of -Wimplicit-int-conversion. The truncation of these implicit
promotions is intentional.
2025-02-11 09:31:01 -08:00

24 lines
872 B
C++

//===-- Unittests for stdc_trailing_ones_uc -------------------------------===//
//
// 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_trailing_ones_uc.h"
#include "test/UnitTest/Test.h"
TEST(LlvmLibcStdcTrailingOnesUcTest, ALL) {
EXPECT_EQ(LIBC_NAMESPACE::stdc_trailing_ones_uc(UCHAR_MAX),
static_cast<unsigned>(UCHAR_WIDTH));
}
TEST(LlvmLibcStdcTrailingOnesUcTest, ZeroHot) {
for (unsigned i = 0U; i != UCHAR_WIDTH; ++i)
EXPECT_EQ(LIBC_NAMESPACE::stdc_trailing_ones_uc(
static_cast<unsigned char>(~(1U << i))),
i);
}