libs/python/test/result.cpp

   1 // Copyright David Abrahams 2002.
   2 // Distributed under the Boost Software License, Version 1.0. (See
   3 // accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5 #include <boost/python/detail/result.hpp>
   6 #include <boost/type.hpp>
   7 #include <functional>
   8
   9 using boost::python::detail::result;
  10 using boost::type;
  11
  12 void expect_int(type<int>*) {}
  13 void expect_string(type<char*>*) {}
  14
  15 struct X {};
  16
  17 int main()
  18 {
  19     // Test the usage which works for functions, member functions, and data members
  20     expect_int(
  21         result((int(*)())0)
  22         );
  23
  24     expect_int(
  25         result((int(*)(char))0)
  26         );
  27
  28     expect_int(
  29         result((int(X::*)())0)
  30         );
  31
  32     expect_int(
  33         result((int(X::*)(char))0)
  34         );
  35
  36     expect_int(
  37         result((int(X::*))0)
  38         );
  39
  40     expect_string(
  41         result((char*(*)())0)
  42         );
  43
  44     expect_string(
  45         result((char*(*)(char))0)
  46         );
  47
  48     expect_string(
  49         result((char*(X::*)())0)
  50         );
  51
  52     expect_string(
  53         result((char*(X::*)(char))0)
  54         );
  55
  56     expect_string(
  57         result((char*(X::*))0)
  58         );
  59
  60     // Show that we can use the general version that works for
  61     // AdaptableFunctions
  62     expect_int(
  63         result((int(*)())0,0)
  64         );
  65
  66     expect_int(
  67         result((int(*)(char))0,0)
  68         );
  69
  70     expect_int(
  71         result((int(X::*)())0,0)
  72         );
  73
  74     expect_int(
  75         result((int(X::*)(char))0,0)
  76         );
  77
  78     expect_int(
  79         result((int(X::*))0,0)
  80         );
  81
  82     expect_int(
  83         result(std::plus<int>(),0)
  84         );
  85
  86     expect_string(
  87         result((char*(*)())0,0)
  88         );
  89
  90     expect_string(
  91         result((char*(*)(char))0,0)
  92         );
  93
  94     expect_string(
  95         result((char*(X::*)())0,0)
  96         );
  97
  98     expect_string(
  99         result((char*(X::*)(char))0,0)
 100         );
 101
 102     expect_string(
 103         result((char*(X::*))0,0)
 104         );
 105
 106     expect_string(
 107         result(std::plus<char*>(),0)
 108         );
 109
 110     return 0;
 111 }