try function to detec ieee violation

Expander · Mar 6, 2024 · be53ae4 · be53ae4
1 parent 0cd64ec
commit be53ae4
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diff --git a/test/test.hpp b/test/test.hpp
@@ -48,6 +48,14 @@ inline bool has_signed_zero() noexcept
 }
 
 
+inline bool is_ieee754_compliant() noexcept
+{
+   constexpr bool no_fast_math = (1.0 + 0.1) - 1.0 != 0.1;
+
+   return has_inf() && has_signed_zero() && no_fast_math;
+}
+
+
 inline bool is_close_rel(double x, double y, double eps) noexcept
 {
    const double ma = std::max(std::abs(x), std::abs(y));

diff --git a/test/test_log.cpp b/test/test_log.cpp
@@ -9,6 +9,10 @@
 // tests log(z) and log1p(1+z) for small complex z
 TEST_CASE("test_log_and_log1p")
 {
+   if (!is_ieee754_compliant()) {
+      return;
+   }
+
    using namespace polylogarithm;
 
    const double eps = std::numeric_limits<double>::epsilon();