From dfc54e1bbf99a069146025677b70e38755383df9 Mon Sep 17 00:00:00 2001 From: Gael Guennebaud Date: Sun, 14 Sep 2014 18:27:48 +0200 Subject: Fix /= when using evaluator as in changeset 2d90484450f3934db3f5db39ef37967fb9444263 --- test/linearstructure.cpp | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'test/linearstructure.cpp') diff --git a/test/linearstructure.cpp b/test/linearstructure.cpp index b627915ce..87dfa1b6b 100644 --- a/test/linearstructure.cpp +++ b/test/linearstructure.cpp @@ -9,7 +9,6 @@ // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. static bool g_called; - #define EIGEN_SPECIAL_SCALAR_MULTIPLE_PLUGIN { g_called = true; } #include "main.h" @@ -107,4 +106,19 @@ void test_linearstructure() CALL_SUBTEST_10( real_complex() ); CALL_SUBTEST_10( real_complex(10,10) ); } + +#ifdef EIGEN_TEST_PART_4 + { + // make sure that /=scalar and /scalar do not overflow + // rational: 1.0/4.94e-320 overflow, but m/4.94e-320 should not + Matrix4d m2, m3; + m3 = m2 = Matrix4d::Random()*1e-20; + m2 = m2 / 4.9e-320; + VERIFY_IS_APPROX(m2.cwiseQuotient(m2), Matrix4d::Ones()); + m3 /= 4.9e-320; + VERIFY_IS_APPROX(m3.cwiseQuotient(m3), Matrix4d::Ones()); + + + } +#endif } -- cgit v1.2.3