1 // (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
2 // Use, modification, and distribution is subject to the Boost Software
3 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
4 // http://www.boost.org/LICENSE_1_0.txt)
5
6 // See library home page at http://www.boost.org/libs/numeric/conversion
7 //
8 // Contact the author at: fernando_cacciola@hotmail.com
9 //
10 #include<typeinfo>
11 #include<iostream>
12 #include<iomanip>
13
14 #include "boost/numeric/conversion/bounds.hpp"
15
16 #ifdef __BORLANDC__
17 #pragma hdrstop
18 #endif
19
20 #include "test_helpers.cpp"
21
22 using namespace std ;
23 using namespace boost ;
24 using namespace numeric ;
25
26 // Test the fields of boost::numeric::bounds<> against the expected values.
27 //
28 template<class T>
test_bounds(T expected_lowest,T expected_highest,T expected_smallest)29 void test_bounds( T expected_lowest, T expected_highest, T expected_smallest )
30 {
31 T lowest = bounds<T>::lowest () ;
32 T highest = bounds<T>::highest () ;
33 T smallest = bounds<T>::smallest() ;
34
35 BOOST_CHECK_MESSAGE ( lowest == expected_lowest,
36 "bounds<" << typeid(T).name() << ">::lowest() = " << printable(lowest) << ". Expected " << printable(expected_lowest)
37 ) ;
38
39 BOOST_CHECK_MESSAGE ( highest == expected_highest,
40 "bounds<" << typeid(T).name() << ">::highest() = " << printable(highest) << ". Expected " << printable(expected_highest)
41 ) ;
42
43 BOOST_CHECK_MESSAGE ( smallest == expected_smallest,
44 "bounds<" << typeid(T).name() << ">::smallest() = " << printable(smallest) << ". Expected " << printable(expected_smallest)
45 ) ;
46 }
47
48
49 template<class T>
test_bounds_integer(MATCH_FNTPL_ARG (T))50 void test_bounds_integer( MATCH_FNTPL_ARG(T) )
51 {
52 test_bounds( numeric_limits<T>::min BOOST_PREVENT_MACRO_SUBSTITUTION()
53 , numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION()
54 , static_cast<T>(1)
55 ) ;
56 }
57 template<class T>
test_bounds_float(MATCH_FNTPL_ARG (T))58 void test_bounds_float( MATCH_FNTPL_ARG(T))
59 {
60 test_bounds( -numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION ()
61 , numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION ()
62 , numeric_limits<T>::min BOOST_PREVENT_MACRO_SUBSTITUTION ()
63 ) ;
64 }
65
test_bounds_integers()66 void test_bounds_integers()
67 {
68 test_bounds_integer( SET_FNTPL_ARG(unsigned char) ) ;
69 test_bounds_integer( SET_FNTPL_ARG(signed char) ) ;
70 test_bounds_integer( SET_FNTPL_ARG(char) ) ;
71 test_bounds_integer( SET_FNTPL_ARG(unsigned short) ) ;
72 test_bounds_integer( SET_FNTPL_ARG(short) ) ;
73 test_bounds_integer( SET_FNTPL_ARG(unsigned int) ) ;
74 test_bounds_integer( SET_FNTPL_ARG(int) ) ;
75 test_bounds_integer( SET_FNTPL_ARG(unsigned long) ) ;
76 test_bounds_integer( SET_FNTPL_ARG(long) ) ;
77 }
78
test_bounds_floats()79 void test_bounds_floats()
80 {
81 test_bounds_float( SET_FNTPL_ARG(float) );
82 test_bounds_float( SET_FNTPL_ARG(double) );
83 test_bounds_float( SET_FNTPL_ARG(long double) );
84 }
85
test_bounds()86 void test_bounds()
87 {
88 test_bounds_integers() ;
89 test_bounds_floats () ;
90 }
91
92
test_main(int,char * [])93 int test_main( int, char * [] )
94 {
95 cout << setprecision( std::numeric_limits<long double>::digits10 ) ;
96
97 test_bounds();
98
99 return 0;
100 }
101
102