Function aligned_alloc

userspace/libraries/LibC/malloc.cpp:386–420

	memcpy(new_ptr, ptr, BAN::Math::min(old_alloc_size, size));

	free(ptr);

	return new_ptr;
}

void* calloc(size_t nmemb, size_t size)
{
	if (BAN::Math::will_multiplication_overflow(nmemb, size))
	{
		errno = ENOMEM;
		return nullptr;
	}

	const size_t total = nmemb * size;

	void* ptr = malloc(total);
	if (ptr == nullptr)
		return nullptr;

	if (total < s_mmap_threshold)
		memset(ptr, 0, total);
	return ptr;
}

void* reallocarray(void* ptr, size_t nmemb, size_t size)
{
	if (BAN::Math::will_multiplication_overflow(nmemb, size))
	{
		errno = ENOMEM;
		return nullptr;
	}

	return realloc(ptr, nmemb * size);
}

void* aligned_alloc(size_t alignment, size_t size)
{