#include <stdio.h>      // for printf()

#include <unistd.h>     // for getpagesize()
#include <sys/mman.h>   // for mmap()

#include <sstream>

#include <boost/archive/text_oarchive.hpp>

int
main(int argc, char**argv)
{
	// Get the page size.
	int pageSize = ::getpagesize();
	::printf("pageSize = %d\n", pageSize);

	// Allocate a page of zeroes in a lonely part of the address space.
	char* addr = (char*) ::mmap(0, pageSize, PROT_READ|PROT_WRITE,
		MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
	::printf("addr = %p\n", addr);

	// Serialize the last few bytes of the page.
	std::stringstream str;
	boost::archive::text_oarchive oar(str);
	oar.save_binary(addr + (pageSize-8), 8);

	return 0;

	//These cause an address fault:
	//oar.save_binary(addr + (pageSize-4), 4);
	//oar.save_binary(addr + (pageSize-8), 8);
	//oar.save_binary(addr + (pageSize-16), 16);
	//oar.save_binary(addr, pageSize);

	//These don't:
	//oar.save_binary(addr + (pageSize-9), 8);
	//oar.save_binary(addr + (pageSize-8), 7);
	//oar.save_binary(addr + (pageSize-17), 16);
	//oar.save_binary(addr + (pageSize-16), 15);
	//oar.save_binary(addr, pageSize-1);
}