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95 lines
2.1 KiB
C++
95 lines
2.1 KiB
C++
//-----------------------------------------------------------------------------
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// boost-libs variant/test/test5.cpp header file
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// See http://www.boost.org for updates, documentation, and revision history.
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//-----------------------------------------------------------------------------
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//
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// Copyright (c) 2003
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// Eric Friedman, Itay Maman
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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#include "boost/test/minimal.hpp"
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#include "boost/variant.hpp"
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#include "jobs.h"
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#include <assert.h>
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#include <iostream>
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#include <string>
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#include <vector>
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void run()
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{
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using std::string;
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using boost::variant;
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using boost::apply_visitor;
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typedef variant<int, float, unsigned short, unsigned char> t_var1;
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typedef variant<int, t_var1, unsigned short, unsigned char> t_var2;
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typedef variant<string, int, t_var2> t_var3;
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t_var1 v1;
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t_var2 v2;
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t_var2 v2_second;
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t_var3 v3;
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const char c0 = 'x';
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v1 = c0;
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//v2 and v3 are holding (aka: containing) a variant
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v2 = v1;
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v3 = v2;
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verify(v1, spec<int>());
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verify(v2, spec<t_var1>());
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verify(v3, spec<t_var2>());
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//
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// assignment from const char (Converted to int)
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//
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v2 = c0;
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v3 = c0;
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verify(v2, spec<int>());
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verify(v3, spec<int>());
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BOOST_TEST(apply_visitor(sum_int(), v2) == c0);
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BOOST_TEST(apply_visitor(sum_int(), v3) == c0);
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sum_int adder;
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apply_visitor(adder, v2);
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apply_visitor(adder, v3);
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BOOST_TEST(adder.result() == 2*c0);
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//
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// A variant holding a variant
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//
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typedef variant<unsigned char, float> t_var4;
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typedef variant<string, t_var4> t_var5;
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t_var4 v4;
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t_var5 v5;
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v5 = 22.5f;
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verify(v5, spec<t_var4>(), "[V] [V] 22.5");
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}
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int test_main(int , char* [])
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{
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run();
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return 0;
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}
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