Unitary_tests_utils.h
1 /* This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
2  * See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
3  * Author(s): Vincent Rouvreau
4  *
5  * Copyright (C) 2017 Inria
6  *
7  * Modification(s):
8  * - YYYY/MM Author: Description of the modification
9  */
10 #ifndef UNITARY_TESTS_UTILS_H_
11 #define UNITARY_TESTS_UTILS_H_
12 
13 #include <boost/test/unit_test.hpp>
14 
15 #include <iostream>
16 #include <limits> // for std::numeric_limits<>
17 #include <cmath> // for std::fabs
18 
19 template<typename FloatingType >
20 void GUDHI_TEST_FLOAT_EQUALITY_CHECK(FloatingType a, FloatingType b,
21  FloatingType epsilon = std::numeric_limits<FloatingType>::epsilon()) {
22 #ifdef DEBUG_TRACES
23  std::cout << "GUDHI_TEST_FLOAT_EQUALITY_CHECK - " << a << " versus " << b
24  << " | diff = " << std::fabs(a - b) << " - epsilon = " << epsilon << std::endl;
25 #endif
26  BOOST_CHECK(std::fabs(a - b) <= epsilon);
27 }
28 
29 // That's the usual x86 issue where a+b==a+b can return false (without any NaN) because one of them was stored in
30 // memory (and thus rounded to 64 bits) while the other is still in a register (80 bits).
31 template<typename FloatingType >
32 FloatingType GUDHI_PROTECT_FLOAT(FloatingType value) {
33  volatile FloatingType protected_value = value;
34 #ifdef DEBUG_TRACES
35  std::cout << "GUDHI_PROTECT_FLOAT - " << protected_value << std::endl;
36 #endif
37  return protected_value;
38 }
39 
40 #endif // UNITARY_TESTS_UTILS_H_
GUDHI  Version 3.1.0  - C++ library for Topological Data Analysis (TDA) and Higher Dimensional Geometry Understanding.  - Copyright : MIT Generated on Tue Jan 21 2020 09:26:33 for GUDHI by Doxygen 1.8.16