```cpp
#include <iostream>

#include <fcntl.h>
#include <sys/mman.h>

int main()
{
    int fds[2];
    int flags;

    if (pipe(fds) != 0)
    {
        printf("pipe failed: errno is %d (%s)\n", errno, strerror(errno));
        return false;
    }

    flags = fcntl(fds[0], F_GETFL, 0);
    fcntl(fds[0], F_SETFL, flags | O_NONBLOCK);
    
    flags = fcntl(fds[1], F_GETFL, 0);
    fcntl(fds[1], F_SETFL, flags | O_NONBLOCK);
	
	const int size = 4096;
	void* ptr = mmap(nullptr, size, PROT_NONE, MAP_ANON | MAP_PRIVATE, -1, 0);
	// Crashes
	// std::cout << "Pointer value is: " << std::flush << *(int*)ptr << std::endl;
	// Still returns 1, expected -1
	std::cout << write(fds[1], ptr, 1) << std::endl;
	// false, expected true
	std::cout << std::boolalpha << (errno == EFAULT) << std::noboolalpha << std::endl;
	// -1 as expected
	std::cout << write(fds[1], (void*)0xDEADBEEF, 1) << std::endl;
	// true as expected.
	std::cout << std::boolalpha << (errno == EFAULT) << std::noboolalpha << std::endl;
	return 0;
}
```
Why is `write` still succeeding on Haiku when I pass an allocated memory buffer I cannot read from? Is this expected for Haiku?