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
20bool lesser_than( const std::string& l, const std::string& r )
21{
22 return l < r;
23}
24
25
26void 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 s1("bar");
34 std::string* ptr1 = &s1;
35 std::string s2("foo");
36 std::string* ptr2 = &s2;
37 BOOST_CHECK( fun( ptr1, ptr2 ) == true );
38
39 void* vptr1 = ptr1;
40 void* vptr2 = ptr2;
41
42 void_ptr_indirect_fun< std::less<std::string>, std::string> cast_fun;
43 BOOST_CHECK( cast_fun( vptr1, vptr2 ) == true );
44
45 assign::push_back( c&: vec )( new std::string("aa") )
46 ( new std::string("bb") )
47 ( new std::string("dd") )
48 ( new std::string("cc") )
49 ( new std::string("a") );
50
51 std::sort( first: vec.begin().base(), last: vec.end().base(), comp: cast_fun );
52 BOOST_CHECK( vec[0] == "a" );
53 BOOST_CHECK( vec[4] == "dd" );
54
55 std::sort( first: vec.begin().base(), last: vec.end().base(),
56 comp: make_void_ptr_indirect_fun<std::string>( f: &lesser_than ) );
57 BOOST_CHECK( vec[1] == "aa" );
58 BOOST_CHECK( vec[2] == "bb" );
59
60 int i1 = 2;
61 void *iptr1 = &i1;
62 int i2 = 3;
63 void* iptr2 = &i2;
64
65 void_ptr_indirect_fun<std::less<int>, int> int_cast_fun;
66 BOOST_CHECK( int_cast_fun(iptr1,iptr2) );
67
68}
69
70#include <boost/test/unit_test.hpp>
71using boost::unit_test::test_suite;
72
73test_suite* init_unit_test_suite( int argc, char* argv[] )
74{
75 test_suite* test = BOOST_TEST_SUITE( "Pointer Container Test Suite" );
76
77 test->add( BOOST_TEST_CASE( &test_fun ) );
78
79 return test;
80}
81
82
83

source code of boost/libs/ptr_container/test/indirect_fun.cpp