Add unit tests for bug #981: valid and invalid usage of ternary operator

3 files changed, 29 insertions, 0 deletions

diff --git a/failtest/CMakeLists.txt b/failtest/CMakeLists.txt
index 8df0a7631..1a73f05e6 100644
--- a/failtest/CMakeLists.txt
+++ b/failtest/CMakeLists.txt
@@ -41,6 +41,9 @@ ei_add_failtest("ref_5")
 ei_add_failtest("swap_1")
 ei_add_failtest("swap_2")
 
+ei_add_failtest("ternary_1")
+ei_add_failtest("ternary_2")
+
 ei_add_failtest("sparse_ref_1")
 ei_add_failtest("sparse_ref_2")
 ei_add_failtest("sparse_ref_3")
diff --git a/failtest/ternary_1.cpp b/failtest/ternary_1.cpp
new file mode 100644
index 000000000..b40bcb0cc
--- /dev/null
+++ b/failtest/ternary_1.cpp
@@ -0,0 +1,13 @@
+#include "../Eigen/Core"
+
+using namespace Eigen;
+
+int main(int argc,char **)
+{
+  VectorXf a(10), b(10);
+#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
+  b = argc>1 ? 2*a : -a;
+#else
+  b = argc>1 ? 2*a : VectorXf(-a);
+#endif
+}
diff --git a/failtest/ternary_2.cpp b/failtest/ternary_2.cpp
new file mode 100644
index 000000000..a46b12b2b
--- /dev/null
+++ b/failtest/ternary_2.cpp
@@ -0,0 +1,13 @@
+#include "../Eigen/Core"
+
+using namespace Eigen;
+
+int main(int argc,char **)
+{
+  VectorXf a(10), b(10);
+#ifdef EIGEN_SHOULD_FAIL_TO_BUILD
+  b = argc>1 ? 2*a : a+a;
+#else
+  b = argc>1 ? VectorXf(2*a) : VectorXf(a+a);
+#endif
+}