102 lines
3.0 KiB
C++
102 lines
3.0 KiB
C++
// (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
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// Use, modification, and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See library home page at http://www.boost.org/libs/numeric/conversion
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//
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// Contact the author at: fernando_cacciola@hotmail.com
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//
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#include<typeinfo>
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#include<iostream>
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#include<iomanip>
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#include "boost/numeric/conversion/bounds.hpp"
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#ifdef BOOST_BORLANDC
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#pragma hdrstop
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#endif
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#include "test_helpers.cpp"
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using namespace std ;
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using namespace boost ;
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using namespace numeric ;
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// Test the fields of boost::numeric::bounds<> against the expected values.
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//
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template<class T>
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void test_bounds( T expected_lowest, T expected_highest, T expected_smallest )
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{
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T lowest = bounds<T>::lowest () ;
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T highest = bounds<T>::highest () ;
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T smallest = bounds<T>::smallest() ;
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BOOST_CHECK_MESSAGE ( lowest == expected_lowest,
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"bounds<" << typeid(T).name() << ">::lowest() = " << printable(lowest) << ". Expected " << printable(expected_lowest)
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) ;
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BOOST_CHECK_MESSAGE ( highest == expected_highest,
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"bounds<" << typeid(T).name() << ">::highest() = " << printable(highest) << ". Expected " << printable(expected_highest)
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) ;
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BOOST_CHECK_MESSAGE ( smallest == expected_smallest,
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"bounds<" << typeid(T).name() << ">::smallest() = " << printable(smallest) << ". Expected " << printable(expected_smallest)
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) ;
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}
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template<class T>
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void test_bounds_integer( MATCH_FNTPL_ARG(T) )
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{
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test_bounds( numeric_limits<T>::min BOOST_PREVENT_MACRO_SUBSTITUTION()
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, numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION()
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, static_cast<T>(1)
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) ;
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}
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template<class T>
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void test_bounds_float( MATCH_FNTPL_ARG(T))
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{
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test_bounds( -numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION ()
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, numeric_limits<T>::max BOOST_PREVENT_MACRO_SUBSTITUTION ()
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, numeric_limits<T>::min BOOST_PREVENT_MACRO_SUBSTITUTION ()
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) ;
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}
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void test_bounds_integers()
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{
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test_bounds_integer( SET_FNTPL_ARG(unsigned char) ) ;
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test_bounds_integer( SET_FNTPL_ARG(signed char) ) ;
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test_bounds_integer( SET_FNTPL_ARG(char) ) ;
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test_bounds_integer( SET_FNTPL_ARG(unsigned short) ) ;
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test_bounds_integer( SET_FNTPL_ARG(short) ) ;
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test_bounds_integer( SET_FNTPL_ARG(unsigned int) ) ;
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test_bounds_integer( SET_FNTPL_ARG(int) ) ;
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test_bounds_integer( SET_FNTPL_ARG(unsigned long) ) ;
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test_bounds_integer( SET_FNTPL_ARG(long) ) ;
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}
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void test_bounds_floats()
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{
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test_bounds_float( SET_FNTPL_ARG(float) );
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test_bounds_float( SET_FNTPL_ARG(double) );
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test_bounds_float( SET_FNTPL_ARG(long double) );
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}
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void test_bounds()
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{
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test_bounds_integers() ;
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test_bounds_floats () ;
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}
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int test_main( int, char * [] )
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{
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cout << setprecision( std::numeric_limits<long double>::digits10 ) ;
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test_bounds();
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return 0;
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}
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