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//-----------------------------------------------------------------------------
// boost-libs variant/test/test5.cpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2003
// Eric Friedman, Itay Maman
//
// Distributed under 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)
#include "boost/core/lightweight_test.hpp"
#include "boost/variant.hpp"
#include "jobs.h"
#include <assert.h>
#include <iostream>
#include <string>
#include <vector>
void run()
{
using std::string;
using boost::variant;
using boost::apply_visitor;
typedef variant<int, float, unsigned short, unsigned char> t_var1;
typedef variant<int, t_var1, unsigned short, unsigned char> t_var2;
typedef variant<string, int, t_var2> t_var3;
t_var1 v1;
t_var2 v2;
t_var2 v2_second;
t_var3 v3;
const char c0 = 'x';
v1 = c0;
//v2 and v3 are holding (aka: containing) a variant
v2 = v1;
v3 = v2;
verify(v1, spec<int>());
verify(v2, spec<t_var1>());
verify(v3, spec<t_var2>());
//
// assignment from const char (Converted to int)
//
v2 = c0;
v3 = c0;
verify(v2, spec<int>());
verify(v3, spec<int>());
BOOST_TEST(apply_visitor(sum_int(), v2) == c0);
BOOST_TEST(apply_visitor(sum_int(), v3) == c0);
sum_int adder;
apply_visitor(adder, v2);
apply_visitor(adder, v3);
BOOST_TEST(adder.result() == 2*c0);
//
// A variant holding a variant
//
typedef variant<unsigned char, float> t_var4;
typedef variant<string, t_var4> t_var5;
t_var4 v4;
t_var5 v5;
v5 = 22.5f;
verify(v5, spec<t_var4>(), "[V] [V] 22.5");
}
int main()
{
run();
return boost::report_errors();
}
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