René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"ndarray broken for linux aarch64","articleBody":"The unit ndarray-eigen unit test fails when compiling for linux aarch64 with gcc\r\n(gcc9 from Ubuntu 20.04 or conda build environment)\r\nThis patch fixes the problem. \r\nThe intermediate `m1+m2` assigned to an `ndarray` yields some slightly different \r\nmatrix element floats compared to `m3`.\r\n\r\n\r\n```\r\n--- tests/ndarray-eigen.cc.orig 2022-01-10 13:18:40.000000000 -0800\r\n+++ tests/ndarray-eigen.cc      2022-01-10 13:19:20.000000000 -0800\r\n@@ -90,8 +90,8 @@\r\n     m1.setRandom(m, 6);\r\n     Eigen::Matrix\u003cT, Eigen::Dynamic, Cols\u003e m2(6, n);\r\n     m2.setRandom(6, n);\r\n-    asEigenMatrix(makeMutable(a)) = m1 * m2;\r\n     Eigen::Matrix\u003cT, Rows, Cols\u003e m3 = m1 * m2;\r\n+    asEigenMatrix(makeMutable(a)) = m3;\r\n     for (int i = 0; i \u003c m; ++i) {\r\n         for (int j = 0; j \u003c n; ++j) {\r\n             BOOST_CHECK(a[i][j] == m3(i, j));\r\n\r\n```","author":{"url":"https://github.com/mwittgen","@type":"Person","name":"mwittgen"},"datePublished":"2022-01-10T21:33:52.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/97/ndarray/issues/97"}