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Unitary_tests_utils.h
/* This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
* See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
* Author(s): Vincent Rouvreau
*
* Copyright (C) 2017 Inria
*
* Modification(s):
* - YYYY/MM Author: Description of the modification
*/
#ifndef UNITARY_TESTS_UTILS_H_
#define UNITARY_TESTS_UTILS_H_
#include <boost/test/unit_test.hpp>
#include <iostream>
#include <limits> // for std::numeric_limits<>
#include <cmath> // for std::fabs
template<typename FloatingType >
void GUDHI_TEST_FLOAT_EQUALITY_CHECK(FloatingType a, FloatingType b,
FloatingType epsilon = std::numeric_limits<FloatingType>::epsilon()) {
#ifdef DEBUG_TRACES
std::clog << "GUDHI_TEST_FLOAT_EQUALITY_CHECK - " << a << " versus " << b
<< " | diff = " << std::fabs(a - b) << " - epsilon = " << epsilon << std::endl;
#endif
BOOST_CHECK(std::fabs(a - b) <= epsilon);
}
// That's the usual x86 issue where a+b==a+b can return false (without any NaN) because one of them was stored in
// memory (and thus rounded to 64 bits) while the other is still in a register (80 bits).
template<typename FloatingType >
FloatingType GUDHI_PROTECT_FLOAT(FloatingType value) {
volatile FloatingType protected_value = value;
#ifdef DEBUG_TRACES
std::clog << "GUDHI_PROTECT_FLOAT - " << protected_value << std::endl;
#endif
return protected_value;
}
#endif // UNITARY_TESTS_UTILS_H_