libs/serialization/test/test_codecvt_null.cpp

   1 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
   2 // test_codecvt_null.cpp
   3
   4 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
   5 // Use, modification and distribution is subject to the Boost Software
   6 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 // should pass compilation and execution.  Note: compilation with compilers
  10 // which use wchar_t as 2 byte objects will emit warnings.  These should be
  11 // ignored.
  12
  13 #include <algorithm> // std::copy
  14 #include <fstream>
  15 #include <iostream>
  16 #include <iterator>
  17 #include <locale>
  18 #include <vector>
  19 #include <cstdio> // remove
  20 #include <cstddef> // NULL, size_t
  21
  22 #include <boost/config.hpp>
  23 #if defined(BOOST_NO_STDC_NAMESPACE)
  24 namespace std{
  25     using ::remove;
  26 }
  27 #endif
  28
  29 #include "test_tools.hpp"
  30
  31 #include <boost/archive/add_facet.hpp>
  32 #include <boost/archive/codecvt_null.hpp>
  33 #include <boost/archive/iterators/ostream_iterator.hpp>
  34 #include <boost/archive/iterators/istream_iterator.hpp>
  35
  36 template<std::size_t S>
  37 struct test_data
  38 {
  39     static wchar_t wchar_encoding[];
  40 };
  41
  42 template<>
  43 wchar_t test_data<2>::wchar_encoding[] = {
  44     0x0001,
  45     0x007f,
  46     0x0080,
  47     0x07ff,
  48     0x0800,
  49     0x7fff
  50 };
  51
  52 template<>
  53 wchar_t test_data<4>::wchar_encoding[] = {
  54     0x00000001,
  55     0x0000007f,
  56     0x00000080,
  57     0x000007ff,
  58     0x00000800,
  59     0x0000ffff,
  60     0x00010000,
  61     0x0010ffff,
  62     0x001fffff,
  63     0x00200000,
  64     0x03ffffff,
  65     0x04000000,
  66     0x7fffffff
  67 };
  68
  69 #include <iostream>
  70
  71 int test_main( int /* argc */, char* /* argv */[] ) {
  72     const char * testfile = boost::archive::tmpnam(NULL);
  73     BOOST_REQUIRE(NULL != testfile);
  74
  75     std::locale old_loc;
  76     std::locale * null_locale =
  77         boost::archive::add_facet(old_loc, new boost::archive::codecvt_null<wchar_t>);
  78
  79     typedef test_data<sizeof(wchar_t)> td;
  80     {
  81         std::wofstream ofs;
  82         ofs.imbue(*null_locale);
  83         ofs.open(testfile, std::ios::binary);
  84         std::copy(
  85             td::wchar_encoding,
  86             #if ! defined(__BORLANDC__)
  87                 // borland 5.60 complains about this
  88                 td::wchar_encoding + sizeof(td::wchar_encoding)/sizeof(wchar_t),
  89             #else
  90                 // so use this instead
  91                 td::wchar_encoding + 6,
  92             #endif
  93             boost::archive::iterators::ostream_iterator<wchar_t>(ofs)
  94         );
  95     }
  96     bool ok = false;
  97     {
  98         std::wifstream ifs;
  99         ifs.imbue(*null_locale);
 100         ifs.open(testfile, std::ios::binary);
 101         ok = std::equal(
 102             td::wchar_encoding,
 103             #if ! defined(__BORLANDC__)
 104                 // borland 5.60 complains about this
 105                 td::wchar_encoding + sizeof(td::wchar_encoding)/sizeof(wchar_t),
 106             #else
 107                 // so use this instead
 108                 td::wchar_encoding + 6,
 109             #endif
 110             boost::archive::iterators::istream_iterator<wchar_t>(ifs)
 111         );
 112     }
 113
 114     BOOST_CHECK(ok);
 115     {
 116         std::wofstream ofs("testfile2");
 117         ofs.imbue(*null_locale);
 118         int i = 10;
 119         ofs << i;
 120         ofs.close();
 121
 122         std::wifstream ifs("testfile2");
 123         ifs.imbue(*null_locale);
 124         int i2;
 125         ifs >> i2;
 126         std::cout << "i=" << i << std::endl;
 127         std::cout << "i2=" << i2 << std::endl;
 128         BOOST_CHECK(i == i2);
 129         ifs.close();
 130     }
 131
 132     delete null_locale;
 133     std::remove(testfile);
 134     return EXIT_SUCCESS;
 135 }
 136