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// function compositions with bind
      BOOST_CHECK(bind(&sum_of_args_3, bind(&sum_of_args_2, _1, 2), 2, 3)(i)==8); 
      BOOST_CHECK(
        bind(&sum_of_args_9,
           bind(&sum_of_args_0),                             // 0
           bind(&sum_of_args_1, _1),                         // 1
           bind(&sum_of_args_2, _1, _2),                     // 3   
           bind(&sum_of_args_3, _1, _2, _3),                 // 6 
           bind(&sum_of_args_4, _1, _2, _3, 4),              // 10
           bind(&sum_of_args_5, _1, _2, _3, 4, 5),           // 15
           bind(&sum_of_args_6, _1, _2, _3, 4, 5, 6),        // 21
           bind(&sum_of_args_7, _1, _2, _3, 4, 5, 6, 7),     // 28
           bind(&sum_of_args_8, _1, _2, _3, 4, 5, 6, 7, 8)   // 36
        )(i, j, k) == 120);
 

prog.cpp:2:18: error: expected constructor, destructor, or type conversion before ‘(’ token
       BOOST_CHECK(bind(&sum_of_args_3, bind(&sum_of_args_2, _1, 2), 2, 3)(i)==8); 
                  ^
prog.cpp:3:18: error: expected constructor, destructor, or type conversion before ‘(’ token
       BOOST_CHECK(
                  ^

Standard output is empty