From aa3294f14e33ae5078fcdbedc9df241a674a9f2e Mon Sep 17 00:00:00 2001
From: Benoit Jacob <jacob.benoit.1@gmail.com>
Date: Fri, 28 Sep 2007 06:17:36 +0000
Subject: add example to the documentation

---
 doc/CMakeLists.txt |  2 ++
 doc/example.cpp    | 28 ++++++++++++++++++++++++++++
 doc/tutorial.cpp   |  2 +-
 3 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 doc/example.cpp

(limited to 'doc')

diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 919e4a44b..7b236a27f 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -1 +1,3 @@
 add_executable(tutorial tutorial.cpp)
+add_executable(example example.cpp)
+
diff --git a/doc/example.cpp b/doc/example.cpp
new file mode 100644
index 000000000..89f7820b1
--- /dev/null
+++ b/doc/example.cpp
@@ -0,0 +1,28 @@
+#include "../src/All"
+
+using namespace std;
+
+template<typename Scalar, typename Derived>
+void foo(const EiObject<Scalar, Derived>& m)
+{
+	cout << "Here's m:" << endl << m << endl;
+}
+
+template<typename Scalar, typename Derived>
+EiScalarProduct<Derived>
+twice(const EiObject<Scalar, Derived>& m)
+{
+	return static_cast<Scalar>(2) * m;
+}
+
+int main(int, char**)
+{
+	EiMatrix2d m;
+	m(0,0)= 1;
+	m(1,0)= 2;
+	m(0,1)= 3;
+	m(1,1)= 4;
+	foo(m);
+	foo(twice(m));
+	return 0;
+}
diff --git a/doc/tutorial.cpp b/doc/tutorial.cpp
index d909779c5..1da3deb1d 100644
--- a/doc/tutorial.cpp
+++ b/doc/tutorial.cpp
@@ -43,7 +43,7 @@ int main(int, char **)
        << "overwritten _while_ the matrix product m * m is being computed." << endl
        << "This is the counterpart of eliminating temporary objects!" << endl
        << "Anyway, if you want to store m * m into m, you can do this:" << endl
-       << "            m = eval(m * m);" << endl;
+       << "            m = (m * m).eval();" << endl;
   m = m_save;
   m = (m * m).eval();
   cout << "And m is now:" << endl << m << endl << "as was expected." << endl;
-- 
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