As part of a data processing pipeline, complete the implementation of the makePipeline method:

  • The method should accept a vector of functions, and it should return a new function that accepts one parameter arg.
  • The returned function should call the first function in the makePipeline with the parameter arg, and call the second function with the result of the first function.
  • The returned function should continue calling each function in the makePipeline in order, following the same pattern, and return the value from the last function.

For example,

std::vector<std::function<int (int)>> functions;
functions.push_back([] (int x) -> int { return x * 3; });
functions.push_back([] (int x) -> int { return x + 1; });
functions.push_back([] (int x) -> int { return x / 2; });
std::function<int (int)> func = makePipeline(functions);

calling the func(3) should return 5.


  •   Example case: Wrong answer
  •   Various functions: Wrong answer
  •   Various data types: Wrong answer

C++ Closures Public


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