add placement_new test

svn path=/trunk/boost/libs/numeric/ublas/; revision=25603

Jamfile

@@ -116,6 +116,9 @@ test-suite numeric/uBLAS
 #            <define>$(UBLAS_TESTSET)
 #            <vacpp><*><define>"BOOST_UBLAS_NO_ELEMENT_PROXIES"
 #      ]
+
+      [ run test/placement_new.cpp
+      ]
       [ compile concepts.cpp
         : # requirements
             <define>EXTERNAL

Jamfile.v2

@@ -49,7 +49,6 @@ test-suite numeric/uBLAS
         : # input files
         : # requirements
             <define>$(UBLAS_TESTSET)
-            <toolset>intel-linux:<cxxflags>"-fpstkchk"	# Try and pick up runtime failures
             <toolset>vacpp:<define>"BOOST_UBLAS_NO_ELEMENT_PROXIES"
       ]
       [ run test2/test2.cpp
@@ -100,6 +99,9 @@ test-suite numeric/uBLAS
 #            <define>$(UBLAS_TESTSET)
 #            <toolset>vacpp:<define>"BOOST_UBLAS_NO_ELEMENT_PROXIES"
 #      ]
+
+      [ run test/placement_new.cpp
+      ]
       [ compile concepts.cpp
         : # requirements
             <define>EXTERNAL

test/placement_new.cpp

@@ -0,0 +1,54 @@
+/*
+ * Test placement new and array placement new for uBLAS
+ *  See if base pointer is effected by array count cookie
+ */
+
+#include <boost/numeric/ublas/config.hpp>
+#include <iostream>
+
+// User defined type to capture base pointer on construction
+class udt;
+udt* base_pointer;
+
+class udt {
+public:
+    udt () {
+       base_pointer = this;
+    }
+    ~udt () {}      // required for GCC prior to 3.4 to generate cookie
+};
+
+
+int main ()
+{
+    udt a;
+    udt* ap = &a;
+
+    // Capture placement new offsets for a udt    
+    new (ap) udt;
+    int new_offset = int (base_pointer - ap);
+    new (ap) udt [1];
+    int array_new_offset = int (base_pointer - ap);
+    
+    // Print offsets - we expect 0,0 or 0,sizeof(std::size_t)
+    std::cout << new_offset <<','<< array_new_offset << std::endl;
+
+    // Return status
+    if (new_offset != 0)
+        return -1;          // Very bad if new has an offset
+
+#ifdef BOOST_UBLAS_USEFUL_ARRAY_PLACEMENT_NEW
+    bool expect_array_offset = false;
+#else
+    bool expect_array_offset = true;
+#endif
+        // Check match between config and array
+    if (!expect_array_offset && array_new_offset != 0) {
+        return -2;          // Bad config should not enable array new
+    }
+    if (expect_array_offset && array_new_offset == 0) {
+        return -3;          // Config could enable array new
+    }
+
+    return 0;
+}