| 1 | // Copyright 2021 Peter Dimov |
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| 2 | // Distributed under the Boost Software License, Version 1.0. |
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| 3 | // https://www.boost.org/LICENSE_1_0.txt |
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| 4 | |
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| 5 | #include <boost/lambda2.hpp> |
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| 6 | #include <boost/core/lightweight_test.hpp> |
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| 7 | #include <functional> |
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| 8 | |
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| 9 | int main() |
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| 10 | { |
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| 11 | using namespace boost::lambda2; |
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| 12 | |
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| 13 | int x[] = { 1, 2, 3, 4 }; |
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| 14 | |
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| 15 | BOOST_TEST_EQ( _1[0](x), x[0] ); |
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| 16 | BOOST_TEST_EQ( _1[_2](x, 1), x[1] ); |
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| 17 | BOOST_TEST_EQ( (_1[_2] + _3[_4])(x, 2, x, 3), x[2] + x[3] ); |
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| 18 | BOOST_TEST_EQ( std::bind(_1 + _2, _1[_2], _3[_4])(x, 2, x, 3), x[2] + x[3] ); |
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| 19 | |
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| 20 | _1[0](x) = 7; |
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| 21 | BOOST_TEST_EQ( x[0], 7 ); |
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| 22 | |
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| 23 | _1[_2](x, 1) = 8; |
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| 24 | BOOST_TEST_EQ( x[1], 8 ); |
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| 25 | |
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| 26 | return boost::report_errors(); |
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| 27 | } |
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| 28 | |
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