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3rdparty/boost_1_81_0/libs/python/test/result.cpp 2 KB
73ef4ff3   Hu Chunming   提交三方库
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  // Copyright David Abrahams 2002.
  // Distributed under the Boost Software License, Version 1.0. (See
  // accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt)
  #include <boost/python/detail/result.hpp>
  #include <boost/type.hpp>
  #include <functional>
  
  using boost::python::detail::result;
  using boost::type;
  
  void expect_int(type<int>*) {}
  void expect_string(type<char*>*) {}
  
  struct X {};
  
  int main()
  {
      // Test the usage which works for functions, member functions, and data members
      expect_int(
          result((int(*)())0)
          );
  
      expect_int(
          result((int(*)(char))0)
          );
  
      expect_int(
          result((int(X::*)())0)
          );
  
      expect_int(
          result((int(X::*)(char))0)
          );
  
      expect_int(
          result((int(X::*))0)
          );
  
      expect_string(
          result((char*(*)())0)
          );
      
      expect_string(
          result((char*(*)(char))0)
          );
      
      expect_string(
          result((char*(X::*)())0)
          );
      
      expect_string(
          result((char*(X::*)(char))0)
          );
      
      expect_string(
          result((char*(X::*))0)
          );
      
      // Show that we can use the general version that works for
      // AdaptableFunctions
      expect_int(
          result((int(*)())0,0)
          );
  
      expect_int(
          result((int(*)(char))0,0)
          );
  
      expect_int(
          result((int(X::*)())0,0)
          );
  
      expect_int(
          result((int(X::*)(char))0,0)
          );
  
      expect_int(
          result((int(X::*))0,0)
          );
      
      expect_int(
          result(std::plus<int>(),0)
          );
  
      expect_string(
          result((char*(*)())0,0)
          );
      
      expect_string(
          result((char*(*)(char))0,0)
          );
      
      expect_string(
          result((char*(X::*)())0,0)
          );
      
      expect_string(
          result((char*(X::*)(char))0,0)
          );
      
      expect_string(
          result((char*(X::*))0,0)
          );
      
      expect_string(
          result(std::plus<char*>(),0)
          );
  
      return 0;
  }