From 3be9f5c4d7c114eeaf7ce372cccc0e1a2734bac9 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Thu, 16 Apr 2015 13:25:20 +0200
Subject: Constructing a Matrix/Array with implicit transpose could lead to
 memory leaks. Also reduced code duplication for Matrix/Array constructors

---
 test/ctorleak.cpp | 36 +++++++++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 9 deletions(-)

(limited to 'test/ctorleak.cpp')

diff --git a/test/ctorleak.cpp b/test/ctorleak.cpp
index 145d91be4..c158f5e4e 100644
--- a/test/ctorleak.cpp
+++ b/test/ctorleak.cpp
@@ -4,48 +4,66 @@
 
 struct Foo
 {
-  static unsigned object_count;
-  static unsigned object_limit;
+  static Index object_count;
+  static Index object_limit;
   int dummy;
 
   Foo()
   {
 #ifdef EIGEN_EXCEPTIONS
     // TODO: Is this the correct way to handle this?
-    if (Foo::object_count > Foo::object_limit) { throw Foo::Fail(); }
+    if (Foo::object_count > Foo::object_limit) { std::cout << "\nThrow!\n"; throw Foo::Fail(); }
 #endif
+	  std::cout << '+';
     ++Foo::object_count;
   }
 
   ~Foo()
   {
+	  std::cout << '-';
     --Foo::object_count;
   }
 
   class Fail : public std::exception {};
 };
 
-unsigned Foo::object_count = 0;
-unsigned Foo::object_limit = 0;
+Index Foo::object_count = 0;
+Index Foo::object_limit = 0;
 
+#undef EIGEN_TEST_MAX_SIZE
+#define EIGEN_TEST_MAX_SIZE 3
 
 void test_ctorleak()
 {
-  typedef DenseIndex Index;
+  typedef Matrix<Foo, Dynamic, Dynamic> MatrixX;
+  typedef Matrix<Foo, Dynamic, 1> VectorX;
   Foo::object_count = 0;
   for(int i = 0; i < g_repeat; i++) {
     Index rows = internal::random<Index>(2,EIGEN_TEST_MAX_SIZE), cols = internal::random<Index>(2,EIGEN_TEST_MAX_SIZE);
-    Foo::object_limit = internal::random(0, rows*cols - 2);
+    Foo::object_limit = internal::random<Index>(0, rows*cols - 2);
+    std::cout << "object_limit =" << Foo::object_limit << std::endl;
 #ifdef EIGEN_EXCEPTIONS
     try
     {
 #endif
-      Matrix<Foo, Dynamic, Dynamic> m(rows, cols);
+    	std::cout <<       "\nMatrixX m(" << rows << ", " << cols << ");\n";
+      MatrixX m(rows, cols);
 #ifdef EIGEN_EXCEPTIONS
       VERIFY(false);  // not reached if exceptions are enabled
     }
     catch (const Foo::Fail&) { /* ignore */ }
 #endif
+    VERIFY_IS_EQUAL(Index(0), Foo::object_count);
+
+    {
+      Foo::object_limit = (rows+1)*(cols+1);
+      MatrixX A(rows, cols);
+      VERIFY_IS_EQUAL(Foo::object_count, rows*cols);
+      VectorX v=A.row(0);
+      VERIFY_IS_EQUAL(Foo::object_count, (rows+1)*cols);
+      v = A.col(0);
+      VERIFY_IS_EQUAL(Foo::object_count, rows*(cols+1));
+    }
+    VERIFY_IS_EQUAL(Index(0), Foo::object_count);
   }
-  VERIFY_IS_EQUAL(static_cast<unsigned>(0), Foo::object_count);
 }
-- 
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