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author | ROUVREAU Vincent <vincent.rouvreau@inria.fr> | 2019-12-03 17:45:14 +0100 |
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committer | ROUVREAU Vincent <vincent.rouvreau@inria.fr> | 2019-12-03 17:45:14 +0100 |
commit | 10e7b9ff243260887c54c5ca49d92a27c281c68f (patch) | |
tree | 672c305c565e7d126442971c26914c44faad351e /src/common/include | |
parent | 7df0113ddf2892b0cccf025a836214021b301072 (diff) |
Fix #118 - protect some bottleneck tests
Diffstat (limited to 'src/common/include')
-rw-r--r-- | src/common/include/gudhi/Unitary_tests_utils.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/common/include/gudhi/Unitary_tests_utils.h b/src/common/include/gudhi/Unitary_tests_utils.h index 7d039304..9b86460a 100644 --- a/src/common/include/gudhi/Unitary_tests_utils.h +++ b/src/common/include/gudhi/Unitary_tests_utils.h @@ -26,4 +26,15 @@ void GUDHI_TEST_FLOAT_EQUALITY_CHECK(FloatingType a, FloatingType b, 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::cout << "GUDHI_PROTECT_FLOAT - " << protected_value << std::endl; +#endif + return protected_value; +} + #endif // UNITARY_TESTS_UTILS_H_ |