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109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
// Copyright (c) 2012 Robert Ramey
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// 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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#include <iostream>
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#include <exception>
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#include <cstdlib> // EXIT_SUCCESS
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#include "../include/checked.hpp"
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// test conversion to T2 from different literal types
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template<class T2, class T1>
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bool test_cast(
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const T1 & v1,
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const char *t2_name,
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const char *t1_name,
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char expected_result
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){
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std::cout
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<< "testing static_cast<safe<" << t2_name << ">(" << t1_name << ")"
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<< std::endl;
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boost::numeric::checked_result<T2> r2 = boost::numeric::checked::cast<T2>(v1);
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if(expected_result == 'x' && r2.no_exception()){
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std::cout
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<< "failed to detect error in construction "
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<< t2_name << "<-" << t1_name
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<< std::endl;
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boost::numeric::checked::cast<T2>(v1);
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return false;
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}
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if(expected_result == '.' && ! r2.no_exception()){
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std::cout
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<< "erroneously emitted error "
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<< t2_name << "<-" << t1_name
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<< std::endl;
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boost::numeric::checked::cast<T2>(v1);
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return false;
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}
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return true; // passed test
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}
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#include <boost/preprocessor/repetition/repeat.hpp>
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#include <boost/preprocessor/array/elem.hpp>
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#include <boost/preprocessor/array/size.hpp>
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#include <boost/preprocessor/stringize.hpp>
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#include "test_types.hpp"
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#include "test_values.hpp"
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#include "test.hpp"
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// note: same test matrix as used in test_checked. Here we test all combinations
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// safe and unsafe integers. in test_checked we test all combinations of
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// integer primitives
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const char *test_result[VALUE_ARRAY_SIZE] = {
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// 0 0 0 0
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// 01234567012345670123456701234567
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// 01234567890123456789012345678901
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/* 0*/ ".....xx..xx..xx...xx.xxx.xxx.xxx",
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/* 1*/ "..xx.xxx.xxx.xxx.....xxx.xxx.xxx",
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/* 2*/ ".........xx..xx.......xx.xxx.xxx",
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/* 3*/ "..xx..xx.xxx.xxx.........xxx.xxx",
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/* 4*/ ".............xx...........xx.xxx",
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/* 5*/ "..xx..xx..xx.xxx.............xxx",
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/* 6*/ "..............................xx",
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/* 7*/ "..xx..xx..xx..xx................"
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};
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#define TEST_CAST(T1, v, result) \
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rval = rval && test_cast<T1>( \
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v, \
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BOOST_PP_STRINGIZE(T1), \
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BOOST_PP_STRINGIZE(v), \
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result \
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);
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/**/
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#define EACH_VALUE(z, value_index, type_index) \
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(std::cout << type_index << ',' << value_index << ','); \
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TEST_CAST( \
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BOOST_PP_ARRAY_ELEM(type_index, TYPES), \
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BOOST_PP_ARRAY_ELEM(value_index, VALUES), \
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test_result[type_index][value_index] \
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) \
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/**/
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#define EACH_TYPE1(z, type_index, nothing) \
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BOOST_PP_REPEAT( \
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BOOST_PP_ARRAY_SIZE(VALUES), \
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EACH_VALUE, \
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type_index \
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) \
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/**/
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int main(int argc, char *argv[]){
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bool rval = true;
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BOOST_PP_REPEAT( \
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BOOST_PP_ARRAY_SIZE(TYPES), \
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EACH_TYPE1, \
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nothing \
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)
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std::cout << (rval ? "success!" : "failure") << std::endl;
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return rval ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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