ACE/tests/Compiler_Features_04_Test.cpp

   1 /**
   2  * @file
   3  *
   4  * This program checks if the compiler / platform supports the
   5  * std::set container.  The motivation for this test was a discussion
   6  * on the development mailing list, and the documentation was captured
   7  * in:
   8  *
   9  *   http://bugzilla.dre.vanderbilt.edu/show_bug.cgi?id=3715
  10  */
  11
  12 #include "test_config.h"
  13
  14 // The first part of the test is to compile this line.  If the program
  15 // does not compile the platform is just too broken.
  16 #include <set>
  17
  18 int
  19 run_main (int, ACE_TCHAR *[])
  20 {
  21   ACE_START_TEST (ACE_TEXT("Compiler_Features_04_Test"));
  22
  23   // As usual, the exit status from the test is 0 on success, 1 on
  24   // failure
  25   int status = 0;
  26
  27   // Create a simple list ...
  28   using collection = std::set<int>;
  29   collection c;
  30
  31   // ... insert some elements ...
  32   c.insert(5);
  33   c.insert(4);
  34   c.insert(3);
  35   c.insert(2);
  36   c.insert(1);
  37
  38   // ... inserting twice returns a pair ...
  39   std::pair<collection::iterator,bool> r =
  40     c.insert(collection::value_type(5));
  41
  42   // ... the iterator points to the element ...
  43   if (*r.first != 5)
  44     {
  45       status = 1;
  46       ACE_ERROR ((LM_ERROR, ACE_TEXT("Expected to find 5 already in set")));
  47     }
  48
  49   // ... and the booleans says that it is already in the set ...
  50   if (r.second == true)
  51     {
  52       status = 1;
  53       ACE_ERROR ((LM_ERROR, ACE_TEXT("Expected duplicate insert to fail")));
  54     }
  55
  56   // ... add all the numbers to validate that they are there ...
  57   int sum = 0;
  58   for(collection::iterator i = c.begin(), end = c.end();
  59       i != end;
  60       ++i)
  61     {
  62       sum += *i;
  63     }
  64
  65   // ... remember Euler ...
  66   int const expected = 5*(5+1)/2;
  67   if (sum != expected)
  68     {
  69       status = 1;
  70       ACE_ERROR ((LM_ERROR, ACE_TEXT("Expected %d got %d\n"),
  71                   expected, sum));
  72     }
  73
  74   ACE_END_TEST;
  75   return status;
  76 }
  77
  78