ceph/src/boost/libs/ptr_container/test/indirect_fun.cpp

   1 //
   2 // Boost.Pointer Container
   3 //
   4 //  Copyright Thorsten Ottosen 2003-2005. Use, modification and
   5 //  distribution is subject to the Boost Software License, Version
   6 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 //  http://www.boost.org/LICENSE_1_0.txt)
   8 //
   9 // For more information, see http://www.boost.org/libs/ptr_container/
  10 //
  11
  12 #include <boost/ptr_container/indirect_fun.hpp>
  13 #include <boost/ptr_container/ptr_vector.hpp>
  14 #include <boost/assign/list_inserter.hpp>
  15 #include <boost/test/test_tools.hpp>
  16 #include <algorithm>
  17 #include <functional>
  18 #include <string>
  19
  20 bool lesser_than( const std::string& l, const std::string& r )
  21 {
  22     return l < r;
  23 }
  24
  25
  26 void test_fun()
  27 {
  28     using namespace boost;
  29     ptr_vector<std::string> vec;
  30
  31     indirect_fun< std::less<std::string> > fun;
  32
  33     std::string* ptr1  = new std::string("bar");
  34     std::string* ptr2  = new std::string("foo");
  35     BOOST_CHECK( fun( ptr1, ptr2 ) == true );
  36
  37     void*       vptr1  = ptr1;
  38     void*       vptr2  = ptr2;
  39
  40     void_ptr_indirect_fun< std::less<std::string>, std::string> cast_fun;
  41     BOOST_CHECK( cast_fun( vptr1, vptr2 ) == true );
  42
  43     assign::push_back( vec )( new std::string("aa") )
  44                             ( new std::string("bb") )
  45                             ( new std::string("dd") )
  46                             ( new std::string("cc") )
  47                             ( new std::string("a") );
  48
  49     std::sort( vec.begin().base(), vec.end().base(), cast_fun );
  50     BOOST_CHECK( vec[0] == "a" );
  51     BOOST_CHECK( vec[4] == "dd" );
  52
  53     std::sort( vec.begin().base(), vec.end().base(),
  54                make_void_ptr_indirect_fun<std::string>( &lesser_than ) );
  55     BOOST_CHECK( vec[1] == "aa" );
  56     BOOST_CHECK( vec[2] == "bb" );
  57
  58     void* iptr1 = new int(2);
  59     void* iptr2 = new int(3);
  60
  61     void_ptr_indirect_fun<std::less<int>, int> int_cast_fun;
  62     BOOST_CHECK( int_cast_fun(iptr1,iptr2) );
  63
  64 }
  65
  66 #include <boost/test/unit_test.hpp>
  67 using boost::unit_test::test_suite;
  68
  69 test_suite* init_unit_test_suite( int argc, char* argv[] )
  70 {
  71     test_suite* test = BOOST_TEST_SUITE( "Pointer Container Test Suite" );
  72
  73     test->add( BOOST_TEST_CASE( &test_fun ) );
  74
  75     return test;
  76 }
  77
  78