Avoid constexpr by #ifdef (not supported in MSVC18)

Extractor/ExtractionContainers.h

@@ -37,7 +37,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 class ExtractionContainers
 {
+#ifndef _MSC_VER
     constexpr static unsigned stxxl_memory = ((sizeof(std::size_t) == 4) ? std::numeric_limits<int>::max() : std::numeric_limits<unsigned>::max());
+#else
+    const static unsigned stxxl_memory = ((sizeof(std::size_t) == 4) ? INT_MAX : UINT_MAX);
+#endif
   public:
     typedef stxxl::vector<NodeID> STXXLNodeIDVector;
     typedef stxxl::vector<ExternalMemoryNode> STXXLNodeVector;

Util/TrigonometryTables.h

@@ -28,6 +28,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef TRIGONOMETRY_TABLES_H
 #define TRIGONOMETRY_TABLES_H
 
+#include "../typedefs.h"
 #include <cmath>
 
 #include <limits>

typedefs.h

@@ -35,7 +35,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef M_PI
 #define M_PI 3.14159265358979323846
 #endif
-
+#define constexpr const static
 #endif
 
 typedef unsigned int NodeID;