From 35f7829af10c61e33dd2e2a7a015058e11a11ea0 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Sat, 25 Mar 2017 14:17:07 +0100
Subject: update

---
 .../doc/examples/CustomizingEigen_Inheritance.cpp  | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 eigen/doc/examples/CustomizingEigen_Inheritance.cpp

(limited to 'eigen/doc/examples/CustomizingEigen_Inheritance.cpp')

diff --git a/eigen/doc/examples/CustomizingEigen_Inheritance.cpp b/eigen/doc/examples/CustomizingEigen_Inheritance.cpp
new file mode 100644
index 0000000..48df64e
--- /dev/null
+++ b/eigen/doc/examples/CustomizingEigen_Inheritance.cpp
@@ -0,0 +1,30 @@
+#include <Eigen/Core>
+#include <iostream>
+
+class MyVectorType : public Eigen::VectorXd
+{
+public:
+    MyVectorType(void):Eigen::VectorXd() {}
+
+    // This constructor allows you to construct MyVectorType from Eigen expressions
+    template<typename OtherDerived>
+    MyVectorType(const Eigen::MatrixBase<OtherDerived>& other)
+        : Eigen::VectorXd(other)
+    { }
+
+    // This method allows you to assign Eigen expressions to MyVectorType
+    template<typename OtherDerived>
+    MyVectorType& operator=(const Eigen::MatrixBase <OtherDerived>& other)
+    {
+        this->Eigen::VectorXd::operator=(other);
+        return *this;
+    }
+};
+
+int main()
+{
+  MyVectorType v = MyVectorType::Ones(4);
+  v(2) += 10;
+  v = 2 * v;
+  std::cout << v.transpose() << std::endl;
+}
-- 
cgit v1.2.3