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  1. #include <boost/config.hpp>
  2.  
  3. #if defined(BOOST_MSVC)
  4. #pragma warning(disable: 4786)  // identifier truncated in debug info
  5. #pragma warning(disable: 4710)  // function not inlined
  6. #pragma warning(disable: 4711)  // function selected for automatic inline expansion
  7. #pragma warning(disable: 4514)  // unreferenced inline removed
  8. #endif
  9.  
  10. //
  11. //  bind_visitor.cpp - tests bind.hpp with a visitor
  12. //
  13. //  Copyright (c) 2001 Peter Dimov and Multi Media Ltd.
  14. //
  15. // Distributed under the Boost Software License, Version 1.0. (See
  16. // accompanying file LICENSE_1_0.txt or copy at
  17. // http://w...content-available-to-author-only...t.org/LICENSE_1_0.txt)
  18. //
  19.  
  20. #include <boost/bind.hpp>
  21. #include <boost/ref.hpp>
  22.  
  23. #if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
  24. #pragma warning(push, 3)
  25. #endif
  26.  
  27. #include <iostream>
  28. #include <typeinfo>
  29.  
  30. #if defined(BOOST_MSVC) && (BOOST_MSVC < 1300)
  31. #pragma warning(pop)
  32. #endif
  33.  
  34. //
  35.  
  36. struct visitor
  37. {
  38.     template<class T> void operator()( boost::reference_wrapper<T> const & r ) const
  39.     {
  40.         std::cout << "Reference to " << typeid(T).name() << " @ " << &r.get() << " (with value " << r.get() << ")\n";
  41.     }
  42.  
  43.     template<class T> void operator()( T const & t ) const
  44.     {
  45.         std::cout << "Value of type " << typeid(T).name() << " (with value " << t << ")\n";
  46.     }
  47. };
  48.  
  49. int f(int & i, int & j, int)
  50. {
  51.     ++i;
  52.     --j;
  53.     return i + j;
  54. }
  55.  
  56. int x = 2;
  57. int y = 7;
  58.  
  59. int main()
  60. {
  61.     using namespace boost;
  62.  
  63.     visitor v;
  64.     visit_each(v, bind<int>(bind(f, ref(x), _1, 42), ref(y)), 0);
  65. }
Success #stdin #stdout 0s 3412KB
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stdin
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Standard input is empty
stdout
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Value of type PFiRiS_iE (with value 1)
Reference to i @ 0x8049160 (with value 2)
Value of type i (with value 42)
Reference to i @ 0x804915c (with value 7)
https://ideone.com/NiVDMw
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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