1//===-- Unittests for memcpy ----------------------------------------------===//
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 "memory_utils/memory_check_utils.h"
10#include "src/string/memcpy.h"
11#include "test/UnitTest/Test.h"
12
13namespace LIBC_NAMESPACE {
14
15// Adapt CheckMemcpy signature to memcpy.
16static inline void Adaptor(cpp::span<char> dst, cpp::span<char> src,
17 size_t size) {
18 LIBC_NAMESPACE::memcpy(dst.begin(), src.begin(), size);
19}
20
21TEST(LlvmLibcMemcpyTest, SizeSweep) {
22 static constexpr size_t kMaxSize = 400;
23 Buffer SrcBuffer(kMaxSize);
24 Buffer DstBuffer(kMaxSize);
25 Randomize(buffer: SrcBuffer.span());
26 for (size_t size = 0; size < kMaxSize; ++size) {
27 auto src = SrcBuffer.span().subspan(offset: 0, count: size);
28 auto dst = DstBuffer.span().subspan(offset: 0, count: size);
29 ASSERT_TRUE(CheckMemcpy<Adaptor>(dst, src, size));
30 }
31}
32
33} // namespace LIBC_NAMESPACE
34

source code of libc/test/src/string/memcpy_test.cpp