Reference copysign from std namespace

sweemer · Nov 18, 2024 · f37ba21 · f37ba21
1 parent 63dcd6a
commit f37ba21
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/test-suite/basketoption.cpp b/test-suite/basketoption.cpp
@@ -1790,7 +1790,7 @@ BOOST_AUTO_TEST_CASE(testRootOfSumExponentials) {
             const Real offset = (mt.nextReal() < 0.3)? -1.0 : 0.0;
             for (Size j=0; j < n; ++j) {
                 a[j] = mt.nextReal() + offset;
-                sig[j] = copysign(1.0, a[j])*mt.nextReal();
+                sig[j] = std::copysign(Real(1.0), a[j])*mt.nextReal();
             }
             const Real kMin = detail::SumExponentialsRootSolver(a, sig, 0.0)(-10.0);
             const Real kMax = detail::SumExponentialsRootSolver(a, sig, 0.0)( 10.0);