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https://github.com/boostorg/optional.git
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31 lines
820 B
C++
31 lines
820 B
C++
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#include "boost/optional.hpp"
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#include "boost/static_assert.hpp"
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#include "boost/type_traits.hpp"
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using namespace boost;
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typedef optional<char> oc;
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typedef optional<int> oi;
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typedef optional<std::string> os;
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BOOST_STATIC_ASSERT( sizeof(oc) <= 2*sizeof(char) );
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BOOST_STATIC_ASSERT( sizeof(oi) <= 2*sizeof(int) );
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BOOST_STATIC_ASSERT( !has_trivial_default_constructor<oi>::value ); //never true for optional
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BOOST_STATIC_ASSERT( !has_trivial_default_constructor<os>::value );
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BOOST_STATIC_ASSERT( has_trivial_destructor<oi>::value ); //should be true where has_trivial_destructor<T>
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BOOST_STATIC_ASSERT( !has_trivial_destructor<os>::value );
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/*
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has_trivial_assign
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has_trivial_constructor
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has_trivial_copy
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has_trivial_copy_constructor
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has_trivial_default_constructor
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has_trivial_destructor
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*/
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