Squashed 'third_party/eigen/' content from commit 61d72f6
Change-Id: Iccc90fa0b55ab44037f018046d2fcffd90d9d025
git-subtree-dir: third_party/eigen
git-subtree-split: 61d72f6383cfa842868c53e30e087b0258177257
diff --git a/test/sizeof.cpp b/test/sizeof.cpp
new file mode 100644
index 0000000..d9ad356
--- /dev/null
+++ b/test/sizeof.cpp
@@ -0,0 +1,34 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include "main.h"
+
+template<typename MatrixType> void verifySizeOf(const MatrixType&)
+{
+ typedef typename MatrixType::Scalar Scalar;
+ if (MatrixType::RowsAtCompileTime!=Dynamic && MatrixType::ColsAtCompileTime!=Dynamic)
+ VERIFY(std::ptrdiff_t(sizeof(MatrixType))==std::ptrdiff_t(sizeof(Scalar))*std::ptrdiff_t(MatrixType::SizeAtCompileTime));
+ else
+ VERIFY(sizeof(MatrixType)==sizeof(Scalar*) + 2 * sizeof(typename MatrixType::Index));
+}
+
+void test_sizeof()
+{
+ CALL_SUBTEST(verifySizeOf(Matrix<float, 1, 1>()) );
+ CALL_SUBTEST(verifySizeOf(Matrix4d()) );
+ CALL_SUBTEST(verifySizeOf(Matrix<double, 4, 2>()) );
+ CALL_SUBTEST(verifySizeOf(Matrix<bool, 7, 5>()) );
+ CALL_SUBTEST(verifySizeOf(MatrixXcf(3, 3)) );
+ CALL_SUBTEST(verifySizeOf(MatrixXi(8, 12)) );
+ CALL_SUBTEST(verifySizeOf(MatrixXcd(20, 20)) );
+ CALL_SUBTEST(verifySizeOf(Matrix<float, 100, 100>()) );
+
+ VERIFY(sizeof(std::complex<float>) == 2*sizeof(float));
+ VERIFY(sizeof(std::complex<double>) == 2*sizeof(double));
+}