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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// test_non_default_ctor.cpp
// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// should pass compilation and execution
// this tests:
// a) non-intrusive method of implementing serialization
// b) usage of a non-default constructor
#include <cstddef> // NULL
#include <cstdio> // remove()
#include <fstream>
#include <cstdlib> // for rand()
#include <boost/config.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/limits.hpp>
#include <boost/math/special_functions/next.hpp>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{
using ::rand;
using ::remove;
#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(UNDER_CE)
using ::numeric_limits;
#endif
}
#endif
#include <boost/archive/archive_exception.hpp>
#include "test_tools.hpp"
///////////////////////////////////////////////////////
// simple class test - using non-intrusive syntax
// illustrates the usage of the non-intrusve syntax
class A
{
friend class boost::serialization::access;
// note const values can only be initialized with a non
// non-default constructor
const int i;
signed char s;
unsigned char t;
signed int u;
unsigned int v;
float w;
double x;
bool operator==(const A & rhs) const;
bool operator<(const A & rhs) const;
template<class Archive>
void serialize(Archive & ar,const unsigned int /* file_version */){
ar & BOOST_SERIALIZATION_NVP(s);
ar & BOOST_SERIALIZATION_NVP(t);
ar & BOOST_SERIALIZATION_NVP(u);
ar & BOOST_SERIALIZATION_NVP(v);
ar & BOOST_SERIALIZATION_NVP(w);
ar & BOOST_SERIALIZATION_NVP(x);
}
A(const A & rhs);
A & operator=(const A & rhs);
public:
static int count;
const int & get_i() const {
return i;
}
A(int i_);
~A();
};
int A::count = 0;
A::A(int i_) :
i(i_),
s(static_cast<signed char>(0xff & std::rand())),
t(static_cast<signed char>(0xff & std::rand())),
u(std::rand()),
v(std::rand()),
w((float)std::rand() / std::rand()),
x((double)std::rand() / std::rand())
{
++count;
}
A::~A(){
--count;
}
bool A::operator==(const A &rhs) const
{
return
s == rhs.s
&& t == rhs.t
&& u == rhs.u
&& v == rhs.v
&& std::abs( boost::math::float_distance(w, rhs.w)) < 2
&& std::abs( boost::math::float_distance(x, rhs.x)) < 2
;
}
bool A::operator<(const A &rhs) const
{
if(! (s == rhs.s) )
return s < rhs.s;
if(! (t == rhs.t) )
return t < rhs.t;
if(! (u == rhs.u) )
return t < rhs.u;
if(! (v == rhs.v) )
return t < rhs.v;
if(std::abs( boost::math::float_distance(w, rhs.w)) > 1)
return false;
if(std::abs( boost::math::float_distance(x, rhs.x)) > 1)
return false;
return false;
}
namespace boost {
namespace serialization {
template<class Archive>
inline void save_construct_data(
Archive & ar,
const A * a,
const unsigned int /* file_version */
){
// variable used for construction
ar << boost::serialization::make_nvp("i", a->get_i());
}
template<class Archive>
inline void load_construct_data(
Archive & ar,
A * a,
const unsigned int /* file_version */
){
int i;
ar >> boost::serialization::make_nvp("i", i);
::new(a)A(i);
}
} // serialization
} // namespace boost
void save(const char * testfile){
test_ostream os(testfile, TEST_STREAM_FLAGS);
test_oarchive oa(os, TEST_ARCHIVE_FLAGS);
A a(2);
oa << BOOST_SERIALIZATION_NVP(a);
// save a copy pointer to this item
A *pa1 = &a;
oa << BOOST_SERIALIZATION_NVP(pa1);
// save pointer to a new object
A *pa2 = new A(4);
oa << BOOST_SERIALIZATION_NVP(pa2);
delete pa2;
}
void load(const char * testfile){
test_istream is(testfile, TEST_STREAM_FLAGS);
test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
A a(4);
ia >> BOOST_SERIALIZATION_NVP(a);
A *pa1;
ia >> BOOST_SERIALIZATION_NVP(pa1);
BOOST_CHECK_MESSAGE(pa1 == &a, "Copy of pointer not correctly restored");
A *pa2;
ia >> BOOST_SERIALIZATION_NVP(pa2);
BOOST_CHECK_MESSAGE(pa2 != &a, "Pointer not correctly restored");
delete pa2;
}
int
test_main( int /* argc */, char* /* argv */[] )
{
const char * testfile = boost::archive::tmpnam(NULL);
BOOST_REQUIRE(NULL != testfile);
save(testfile);
load(testfile);
BOOST_CHECK(0 == A::count);
std::remove(testfile);
return EXIT_SUCCESS;
}
// EOF
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