forked from boostorg/utility
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
// (C) 2003, Jan Langer (jan@langernetz.de).
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//
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// This material is provided "as is", with absolutely no warranty expressed
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// or implied. Any use is at your own risk.
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//
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// Permission to use or copy this software for any purpose is hereby granted
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// without fee, provided the above notices are retained on all copies.
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// Permission to modify the code and to distribute modified code is granted,
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// provided the above notices are retained, and a notice that the code was
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// modified is included with the above copyright notice.
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#include <functional>
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#include <boost/test/minimal.hpp>
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#include <boost/utility/lexicographic.hpp>
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int test_main (int, char *[])
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{
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using boost::lexicographic;
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lexicographic l1; // equivalent
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BOOST_CHECK (!l1);
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lexicographic l2 (l1); // equivalent
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BOOST_CHECK (!l2);
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BOOST_CHECK (l1 == l2);
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l2 = l1;
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BOOST_CHECK (!l2);
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BOOST_CHECK (l2 == l1);
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l2 (3, 6); // less
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BOOST_CHECK (l2);
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BOOST_CHECK (l2.result () == lexicographic::minus);
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BOOST_CHECK (lexicographic::minus == l2.result ());
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BOOST_CHECK (l2.result () != lexicographic::equivalent);
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BOOST_CHECK (lexicographic::equivalent != l2.result ());
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BOOST_CHECK (l1 != l2);
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lexicographic l3 (3.0, 1.0); // greater
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BOOST_CHECK (!l3);
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BOOST_CHECK (l3 != l1);
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for (int i = 1; i <= 3; ++i)
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for (int j = 1; j <= 3; ++j)
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for (int k = 1; k <= 3; ++k)
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{
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lexicographic l4;
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l4 (i, 2) (j, 2) (k, 2);
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if (i < 2)
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BOOST_CHECK (l4);
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else if (i > 2)
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BOOST_CHECK (!l4);
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else if (j < 2)
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BOOST_CHECK (l4);
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else if (j > 2)
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BOOST_CHECK (!l4);
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else if (k < 2)
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BOOST_CHECK (l4);
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else
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BOOST_CHECK (!l4);
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}
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lexicographic l5;
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l5 (1, 1, std::greater <int> ()) (2, 3);
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BOOST_CHECK (l5);
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lexicographic l6;
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l6 (1, 1, std::greater <int> ()) (2, 3, std::greater <int> ());
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BOOST_CHECK (!l6);
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lexicographic l7;
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l7 (1, 1) (2, 3, std::greater <int> ());
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BOOST_CHECK (!l7);
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return 0;
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}
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