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| author | Vincent Rouvreau <10407034+VincentRouvreau@users.noreply.github.com> | 2019-12-20 16:04:50 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-12-20 16:04:50 +0100 |
| commit | 2842ab896b21e4577198216e814084cfd88d989c (patch) | |
| tree | 99fb1073da4a589ecd5503e635f6370bafbba374 /src/common | |
| parent | 0d3675360ce4c23d9fd4c7c157810c31ed06403b (diff) | |
| parent | 291286815e282c9693f17615f8c46a49f87bf887 (diff) | |
Merge pull request #164 from VincentRouvreau/failed_tests_on_x86_fix
Fix #118 - protect some bottleneck tests
Diffstat (limited to 'src/common')
| -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_ |