From 722916e19d86b224ec6c705e24d376def524154b Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Thu, 6 Nov 2014 09:25:26 +0100
Subject: bug #903: clean swap API regarding extra enable_if parameters, and
 add failtests for swap

---
 failtest/CMakeLists.txt |  3 +++
 failtest/swap_1.cpp     | 14 ++++++++++++++
 failtest/swap_2.cpp     | 14 ++++++++++++++
 3 files changed, 31 insertions(+)
 create mode 100644 failtest/swap_1.cpp
 create mode 100644 failtest/swap_2.cpp

(limited to 'failtest')

diff --git a/failtest/CMakeLists.txt b/failtest/CMakeLists.txt
index 5343dc152..d2fea7bdc 100644
--- a/failtest/CMakeLists.txt
+++ b/failtest/CMakeLists.txt
@@ -38,6 +38,9 @@ ei_add_failtest("ref_3")
 ei_add_failtest("ref_4")
 ei_add_failtest("ref_5")
 
+ei_add_failtest("swap_1")
+ei_add_failtest("swap_2")
+
 if (EIGEN_FAILTEST_FAILURE_COUNT)
   message(FATAL_ERROR
           "${EIGEN_FAILTEST_FAILURE_COUNT} out of ${EIGEN_FAILTEST_COUNT} failtests FAILED. "
diff --git a/failtest/swap_1.cpp b/failtest/swap_1.cpp
new file mode 100644
index 000000000..106379720
--- /dev/null
+++ b/failtest/swap_1.cpp
@@ -0,0 +1,14 @@
+#include "../Eigen/Core"
+
+using namespace Eigen;
+
+int main()
+{
+  VectorXf a(10), b(10);
+#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
+  const DenseBase<VectorXf> &ac(a);
+#else
+  DenseBase<VectorXf> &ac(a);
+#endif
+  b.swap(ac);
+}
diff --git a/failtest/swap_2.cpp b/failtest/swap_2.cpp
new file mode 100644
index 000000000..c130ba6e4
--- /dev/null
+++ b/failtest/swap_2.cpp
@@ -0,0 +1,14 @@
+#include "../Eigen/Core"
+
+using namespace Eigen;
+
+int main()
+{
+  VectorXf a(10), b(10);
+  VectorXf const &ac(a);
+#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
+  b.swap(ac);
+#else
+  b.swap(ac.const_cast_derived());
+#endif
+}
\ No newline at end of file
-- 
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