ceph/src/boost/libs/histogram/test/utility_serialization.hpp

   1 // Copyright 2019 Hans Dembinski
   2 //
   3 // Distributed under the Boost Software License, Version 1.0.
   4 // (See accompanying file LICENSE_1_0.txt
   5 // or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #ifndef BOOST_HISTOGRAM_TEST_UTILITY_SERIALIZATION_HPP
   8 #define BOOST_HISTOGRAM_TEST_UTILITY_SERIALIZATION_HPP
   9
  10 #include <boost/archive/xml_iarchive.hpp>
  11 #include <boost/archive/xml_oarchive.hpp>
  12 #include <boost/assert.hpp>
  13 #include <boost/config.hpp>
  14 #include <boost/core/nvp.hpp>
  15 #include <fstream>
  16 #include <iostream>
  17 #include <string>
  18
  19 std::string join(const char* a, const char* b) {
  20   std::string filename = a;
  21   filename +=
  22 #ifdef BOOST_WINDOWS
  23       "\\";
  24 #else
  25       "/";
  26 #endif
  27   filename += b;
  28   return filename;
  29 }
  30
  31 template <class T>
  32 void load_xml(const std::string& filename, T& t) {
  33   std::ifstream ifs(filename);
  34   BOOST_ASSERT(ifs.is_open());
  35   // manually skip XML comments at the beginning of the stream, because of
  36   // https://github.com/boostorg/serialization/issues/169
  37   char line[128];
  38   do {
  39     ifs.getline(line, 128);
  40     BOOST_ASSERT(std::strlen(line) < 127);
  41   } while (!ifs.fail() && !ifs.eof() && std::strstr(line, "-->") == nullptr);
  42   boost::archive::xml_iarchive ia(ifs);
  43   ia >> boost::make_nvp("item", t);
  44 }
  45
  46 template <class T>
  47 void print_xml(const std::string& filename, const T& t) {
  48   std::cout << filename << "\n";
  49   boost::archive::xml_oarchive oa(std::cout);
  50   oa << boost::make_nvp("item", t);
  51   std::cout << std::flush;
  52 }
  53
  54 #endif