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124 lines
2.4 KiB
C++
124 lines
2.4 KiB
C++
// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
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//
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// Use, modification, and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/lib/optional for documentation.
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//
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// You are welcome to contact the author at:
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// fernando_cacciola@hotmail.com
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//
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#include<stdexcept>
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#include<string>
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#include<sstream>
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#define BOOST_ENABLE_ASSERT_HANDLER
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#include "boost/optional/optional.hpp"
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#include "boost/optional/optional_io.hpp"
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#include "boost/none.hpp"
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#include "boost/test/minimal.hpp"
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#ifdef ENABLE_TRACE
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#define TRACE(msg) std::cout << msg << std::endl ;
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#else
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#define TRACE(msg)
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#endif
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namespace boost {
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void assertion_failed (char const * expr, char const * func, char const * file, long )
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{
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using std::string ;
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string msg = string("Boost assertion failure for \"")
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+ string(expr)
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+ string("\" at file \"")
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+ string(file)
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+ string("\" function \"")
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+ string(func)
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+ string("\"") ;
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TRACE(msg);
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throw std::logic_error(msg);
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}
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}
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using namespace std ;
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using namespace boost ;
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template<class Opt>
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void test2( Opt o, Opt buff )
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{
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stringstream s ;
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const int markv = 123 ;
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int mark = 0 ;
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s << o << " " << markv ;
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s >> buff >> mark ;
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BOOST_CHECK( buff == o ) ;
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BOOST_CHECK( mark == markv ) ;
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}
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template<class T>
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void test( T v, T w )
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{
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test2( make_optional(v), optional<T> ());
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test2( make_optional(v), make_optional(w));
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test2( optional<T> () , optional<T> ());
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test2( optional<T> () , make_optional(w));
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}
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template <class T>
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void subtest_tag_none_reversibility_with_optional(optional<T> ov)
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{
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stringstream s;
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s << boost::none;
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s >> ov;
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BOOST_CHECK(!ov);
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}
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template <class T>
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void subtest_tag_none_equivalence_with_optional()
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{
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stringstream s, r;
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optional<T> ov;
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s << boost::none;
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r << ov;
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BOOST_CHECK(s.str() == r.str());
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}
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template <class T>
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void test_tag_none(T v)
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{
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subtest_tag_none_reversibility_with_optional(optional<T>(v));
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subtest_tag_none_reversibility_with_optional(optional<T>());
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subtest_tag_none_equivalence_with_optional<T>();
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}
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int test_main( int, char* [] )
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{
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try
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{
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test(1,2);
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test(string("hello"),string("buffer"));
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test_tag_none(10);
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test_tag_none(string("text"));
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}
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catch ( ... )
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{
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BOOST_ERROR("Unexpected Exception caught!");
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}
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return 0;
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}
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