mirror of
https://github.com/boostorg/safe_numerics.git
synced 2026-02-02 21:12:17 +00:00
136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
// Copyright (c) 2012 Robert Ramey
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See
|
|
// accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
#include <exception>
|
|
#include <cxxabi.h>
|
|
#include <cstdlib> // EXIT_SUCCESS
|
|
#include <iostream>
|
|
|
|
#include "../include/checked_result.hpp"
|
|
#include "../include/checked.hpp"
|
|
|
|
template<class T1, class T2>
|
|
bool test_checked_divide(
|
|
T1 v1,
|
|
T2 v2,
|
|
const char *av1,
|
|
const char *av2,
|
|
char expected_result
|
|
){
|
|
using namespace boost::numeric;
|
|
|
|
std::cout
|
|
<< "testing "
|
|
<< av1 << " / " << av2
|
|
<< std::endl;
|
|
|
|
typedef decltype(T1() / T2()) result_type;
|
|
|
|
checked_result<result_type> result
|
|
= checked::divide<result_type>(v1, v2);
|
|
|
|
if(result.no_exception()
|
|
&& expected_result != '.'){
|
|
std::cout
|
|
<< "failed to detect error in division "
|
|
<< std::hex << "0x" << result << "(" << std::dec << result << ")"
|
|
<< " != "<< av1 << " / " << av2
|
|
<< std::endl;
|
|
result = checked::divide<result_type>(v1, v2);
|
|
return false;
|
|
}
|
|
else
|
|
if(! result.no_exception()
|
|
&& expected_result != 'x'){
|
|
std::cout
|
|
<< "erroneously detected error "
|
|
<< std::hex << result << av1 << " / " << av2 << std::dec << std::endl;
|
|
result = checked::divide<result_type>(v1, v2);
|
|
return false;
|
|
}
|
|
return true; // correct result
|
|
}
|
|
|
|
#include "test.hpp"
|
|
#include "test_values.hpp"
|
|
|
|
// note: same test matrix as used in test_divide. Here we test all combinations
|
|
// safe and unsafe integers. in test_checked we test all combinations of
|
|
// integer primitives
|
|
|
|
const char *test_division_result[VALUE_ARRAY_SIZE] = {
|
|
// 0 0 0 0
|
|
// 01234567012345670123456701234567
|
|
// 01234567890123456789012345678901
|
|
/* 0*/ "................................",
|
|
/* 1*/ "................................",
|
|
/* 2*/ "........................xxxxxxxx",
|
|
/* 3*/ "........................xxxxxxxx",
|
|
/* 4*/ ".................................",
|
|
/* 5*/ "................................",
|
|
/* 6*/ "........................xxxxxxxx",
|
|
/* 7*/ "........................xxxxxxxx",
|
|
|
|
/* 8*/ "................................",
|
|
/* 9*/ "................................",
|
|
/*10*/ "...x...x...x............xxxxxxxx",
|
|
/*11*/ "........................xxxxxxxx",
|
|
/*12*/ "................................",
|
|
/*13*/ "................................",
|
|
/*14*/ "...x...x...x...x............xxxx",
|
|
/*15*/ "............................xxxx",
|
|
|
|
// 0 0 0 0
|
|
// 01234567012345670123456701234567
|
|
// 01234567890123456789012345678901
|
|
/*16*/ "................................",
|
|
/*17*/ "................................",
|
|
/*18*/ "................................",
|
|
/*19*/ "................................",
|
|
/*20*/ "................................",
|
|
/*21*/ "................................",
|
|
/*22*/ "................................",
|
|
/*23*/ "................................",
|
|
|
|
/*24*/ "..xx..xx..xx....................",
|
|
/*25*/ "..xx..xx..xx....................",
|
|
/*26*/ "..xx..xx..xx....................",
|
|
/*27*/ "..xx..xx..xx....................",
|
|
/*28*/ "..xx..xx..xx..xx................",
|
|
/*29*/ "..xx..xx..xx..xx................",
|
|
/*30*/ "..xx..xx..xx..xx................",
|
|
/*31*/ "..xx..xx..xx..xx................"
|
|
};
|
|
|
|
#define TEST_IMPL(v1, v2, result) \
|
|
rval &= test_checked_divide( \
|
|
v1, \
|
|
v2, \
|
|
BOOST_PP_STRINGIZE(v1), \
|
|
BOOST_PP_STRINGIZE(v2), \
|
|
result \
|
|
);
|
|
/**/
|
|
|
|
#define TESTX(value_index1, value_index2) \
|
|
(std::cout << value_index1 << ',' << value_index2 << ','); \
|
|
TEST_IMPL( \
|
|
BOOST_PP_ARRAY_ELEM(value_index1, VALUES), \
|
|
BOOST_PP_ARRAY_ELEM(value_index2, VALUES), \
|
|
test_division_result[value_index1][value_index2] \
|
|
)
|
|
/**/
|
|
|
|
int main(int argc, char *argv[]){
|
|
bool rval = true;
|
|
|
|
TEST_EACH_VALUE_PAIR
|
|
std::cout << (rval ? "success!" : "failure") << std::endl;
|
|
return ! rval ;
|
|
}
|
|
|
|
|