c++ - boost bind or lambda functor that returns a constant -

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Can I use the bind or boost lambda library to promote: that ignores its arguments and always Provides a stability?

For example an abusive physician: 

  complete return three (some type ARG) {return 3; }

Sure, use 

  boost :: Phoenix :: Val (3);

See this 

  #include & lt; Boost / phoenix.hpp & gt; Namespace P = Promotion: Phoenix; Namespace P: using arg_names; Int main () {auto p = p :: val (42); Return P () + P (/ * Ignored: * / 77); }

which returns 84 as the exitcode.


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