mirror of https://github.com/CGAL/cgal
33 lines
997 B
C++
33 lines
997 B
C++
#include <CGAL/assertions.h>
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#include <CGAL/is_streamable.h>
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#include <utility> // std::pair
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#include <boost/tuple/tuple.hpp>
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#include <boost/tuple/tuple_io.hpp>
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struct A {};
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struct B {};
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struct C {};
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struct D {};
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using std::ostream;
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using std::istream;
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ostream& operator<<(ostream& os, const B&) { return os; }
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istream& operator>>(istream& is, const B&) { return is; }
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ostream& operator<<(ostream& os, const C&) { return os; }
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istream& operator>>(istream& is, const D&) { return is; }
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int main() {
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using CGAL::is_streamable;
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CGAL_static_assertion(!is_streamable<A>::value);
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CGAL_static_assertion(is_streamable<B>::value);
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CGAL_static_assertion(!is_streamable<C>::value);
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CGAL_static_assertion(!is_streamable<D>::value);
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CGAL_static_assertion(is_streamable<int>::value);
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CGAL_static_assertion(is_streamable<double>::value);
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CGAL_static_assertion(! (is_streamable<std::pair<int, int> >::value) );
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CGAL_static_assertion( (is_streamable<boost::tuple<int, int> >::value) );
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}
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