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