libc/test/src/strings/bzero_test.cpp

//===-- Unittests for bzero -----------------------------------------------===//
//
// 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/macros/config.h"
#include "src/strings/bzero.h"
#include "test/UnitTest/Test.h"
#include "test/src/string/memory_utils/memory_check_utils.h"

namespace LIBC_NAMESPACE_DECL {

// Adapt CheckMemset signature to bzero.
static inline void Adaptor(cpp::span<char> p1, [[maybe_unused]] uint8_t value,
                           size_t size) {
  LIBC_NAMESPACE::bzero(p1.begin(), size);
}

TEST(LlvmLibcBzeroTest, SizeSweep) {
  static constexpr size_t kMaxSize = 400;
  Buffer DstBuffer(kMaxSize);
  for (size_t size = 0; size < kMaxSize; ++size) {
    auto dst = DstBuffer.span().subspan(0, size);
    ASSERT_TRUE((CheckMemset<Adaptor>(dst, 0, size)));
  }
}

} // namespace LIBC_NAMESPACE_DECL