ceph/src/boost/libs/lambda2/test/dereference.cpp

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