dlib C++ Library - byte_orderer.cpp

// Copyright (C) 2011 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#include <sstream>
#include <string>
#include <cstdlib>
#include <ctime>
#include <cmath>
#include <dlib/byte_orderer.h>
#include "tester.h"
namespace 
{
 using namespace test;
 using namespace dlib;
 using namespace std;
 logger dlog("test.byte_orderer");
 class byte_orderer_tester : public tester
 {
 public:
 byte_orderer_tester (
 ) :
 tester ("test_byte_orderer",
 "Runs tests on the byte_orderer component.")
 {}
 void perform_test (
 )
 {
 byte_orderer bo;
 union data
 {
 unsigned char b[4];
 dlib::uint32 val;
 };
 data a;
 a.val = 1;
 if (bo.host_is_little_endian())
 {
 DLIB_TEST(a.b[0] == 1);
 DLIB_TEST(a.b[1] == 0);
 DLIB_TEST(a.b[2] == 0);
 DLIB_TEST(a.b[3] == 0);
 bo.host_to_big(a.val);
 DLIB_TEST(a.b[0] == 0);
 DLIB_TEST(a.b[1] == 0);
 DLIB_TEST(a.b[2] == 0);
 DLIB_TEST(a.b[3] == 1);
 bo.big_to_host(a.val);
 DLIB_TEST(a.b[0] == 1);
 DLIB_TEST(a.b[1] == 0);
 DLIB_TEST(a.b[2] == 0);
 DLIB_TEST(a.b[3] == 0);
 DLIB_TEST(a.val == 1);
 bo.host_to_network(a.val);
 DLIB_TEST(a.val == 0x01000000);
 bo.network_to_host(a.val);
 DLIB_TEST(a.val == 1);
 }
 else
 {
 DLIB_TEST(a.b[0] == 0);
 DLIB_TEST(a.b[1] == 0);
 DLIB_TEST(a.b[2] == 0);
 DLIB_TEST(a.b[3] == 1);
 bo.host_to_little(a.val);
 DLIB_TEST(a.b[0] == 1);
 DLIB_TEST(a.b[1] == 0);
 DLIB_TEST(a.b[2] == 0);
 DLIB_TEST(a.b[3] == 0);
 bo.little_to_host(a.val);
 DLIB_TEST(a.b[0] == 0);
 DLIB_TEST(a.b[1] == 0);
 DLIB_TEST(a.b[2] == 0);
 DLIB_TEST(a.b[3] == 1);
 DLIB_TEST(a.val == 1);
 bo.network_to_host(a.val);
 DLIB_TEST(a.val == 1);
 bo.host_to_network(a.val);
 DLIB_TEST(a.val == 1);
 }
 }
 } a;
}