no message

git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@56 7ec92016-0320-0410-acc4-a06ded1c099a

MSVC/1300/DataGenerators.h

@@ -9,8 +9,8 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 #include "TypeList.h"
-#include "StreamTypes.h"
 
+//MSVC7 version
 namespace Loki
 {
 ////////////////////////////////////////////////////////////////////////////////
@@ -26,7 +26,14 @@ namespace Loki
 				return typeid(T).name();
 				}
 			};
-    
+		template<typename T>
+		struct sizeof_type
+			{
+			size_t operator()()
+				{
+				return sizeof(T);
+				}
+			};    
     template <class TList, template <typename> class UnitFunc>
     struct IterateTypes;
 
@@ -83,13 +90,13 @@ namespace Loki
         { 
             struct Result
             {
-				    typedef GenFunc<AtomicType> genfunc_t;
+				typedef GenFunc<AtomicType> genfunc_t;
                 template<class II>
                 void operator()(II& ii)
                 {
-                    genfunc_t gen;
-						  *ii = gen();
-						  ++ii;
+                genfunc_t gen;
+				*ii = gen();
+				++ii;
                 }
                 template<class II, class P1>
                 void operator()(II& ii, P1 p1)
@@ -190,6 +197,17 @@ namespace Loki
 		  this->tail.operator()(ii, p1);
 		  }
 	 };
+
+	//UnitFunc is really a template-template parameter, but MSVC7
+	// chokes on the correct defintion.  Oddly enough, it works correctly
+	// with the 'undecorated' template parameter declaraion!
+	//template <typename> class UnitFunc
+	template<typename Types, class UnitFunc, typename II>
+	void iterate_types(II &ii)
+		{
+		Loki::TL::IterateTypes<Types, UnitFunc> it;
+		it(ii);
+		}
 	}//ns TL
 }//ns Loki
 

Reference/DataGenerators.h

@@ -10,6 +10,8 @@
 
 #include "TypeList.h"
 
+//Reference version
+
 /************************************************************************************
 // class template GenData
 // Iteratates a TypeList, and invokes the functor GenFunc<T>
@@ -29,9 +31,9 @@ struct ExtractDataType
 		}
 	};
 
-Loki::GenData<parameter_tl, ExtractDataType> gen;
-std::vector<user_defined_type> stuff;
-gen(std::back_inserter(stuff));
+Loki::IterateTypes<parameter_tl, ExtractDataType> gendata;
+std::vector<some_type> stuff;
+gendata(std::back_inserter(stuff));
 *******************************************************************************/
 namespace Loki
 {
@@ -45,22 +47,29 @@ namespace Loki
 				return typeid(T).name();
 				}
 			};
-
+		template<typename T>
+		struct sizeof_type
+			{
+			size_t operator()()
+				{
+				return sizeof(T);
+				}
+			};
     template <class TList, template <class> class GenFunc>
     struct IterateTypes;
      
     template <class T1, class T2, template <class> class GenFunc>
     struct IterateTypes<Typelist<T1, T2>, GenFunc>
-        : public IterateTypes<T1, GenFunc>
-        , public IterateTypes<T2, GenFunc>
     {
+    typedef IterateTypes<T1, GenFunc> head_t;
+    head_t head;
+    typedef IterateTypes<T2, GenFunc> tail_t;
+    tail_t tail;
     template<class II>
     void operator()(II& ii)
         {
-        typedef IterateTypes<T1, GenFunc> head_t;
-        typedef IterateTypes<T2, GenFunc> tail_t;
-        head_t::operator()(ii);
-		tail_t::operator()(ii);
+        head.operator()(ii);
+		tail.operator()(ii);
 		}
     };
      
@@ -70,8 +79,8 @@ namespace Loki
     template<class II>
     void operator()(II& ii)
         {
-        typedef GenFunc<AtomicType> genfunc_t;
-        *ii = genfunc_t()();
+        GenFunc<AtomicType> genfunc;
+        *ii = genfunc();
         ++ii;
         }
     };
@@ -83,6 +92,13 @@ namespace Loki
     void operator()(II& ii)
         {}
     };
+    
+	template<typename Types, template <typename> class UnitFunc, typename II>
+	void iterate_types(II &ii)
+		{
+		Loki::TL::IterateTypes<Types, UnitFunc> it;
+		it(ii);
+		}
 	}//ns TL
 }//ns Loki
 

tools/RegressionTest2/DataGeneratorsTest.h

@@ -0,0 +1,67 @@
+//DataGeneratorsTest.h
+
+
+#ifndef DATAGENERATORSTEST_H
+#define DATAGENERATORSTEST_H
+
+#include <typeinfo>
+#include <Loki/DataGenerators.h>
+#include "UnitTest.h"
+
+template<typename T>
+T& remove_const(const T& t)
+	{
+	return const_cast<T&>(t);
+	}
+
+
+struct DataGeneratorsTest : public Test
+	{
+	DataGeneratorsTest() : Test("DataGeneratorsTest.h")
+		{}
+	virtual void execute(TestResult& result)
+		{
+		this->printName(result);
+		
+		bool b;
+		typedef Loki::TL::MakeTypelist<>::Result null_tl;
+		typedef Loki::TL::MakeTypelist<char,
+		                               unsigned char,
+		                               signed char,
+		                               wchar_t>::Result char_types;
+		int n = Loki::TL::Length<char_types>::value;
+		
+		std::vector<const char*> names;
+		names.reserve(n);
+		Loki::TL::IterateTypes<char_types, Loki::TL::name_from_type> makenames;
+		//Some gcc fascist decided to make all temporaries /const/!
+		makenames(remove_const(std::back_inserter(names)));
+		b = names.size() == n;
+		testAssert("iterate_types - Check Length", b, result);
+		
+		std::vector<size_t> sizes;
+		sizes.reserve(n);
+		typedef Loki::TL::MakeTypelist<char,
+		                               short,
+		                               int,
+		                               double>::Result some_types;
+		Loki::TL::iterate_types<some_types, Loki::TL::sizeof_type>(remove_const(std::back_inserter(sizes)));
+		size_t apriori_size[] = {sizeof(char), sizeof(short), sizeof(int), sizeof(double)};
+		b = true;
+		for(int i=0; i<n; ++i)
+			b &= sizes[i] == apriori_size[i];
+		testAssert("iterate_types - Check Elements", b, result);
+		
+		sizes.resize(0);
+		Loki::TL::iterate_types<null_tl, Loki::TL::sizeof_type>(sizes);
+		b = sizes.size() == 0;
+		testAssert("iterate_types - Degenerate Case 1 - Null List", b, result);
+
+		sizes.resize(0);
+		Loki::TL::iterate_types<Loki::NullType, Loki::TL::sizeof_type>(sizes);
+		b = sizes.size() == 0;
+		testAssert("iterate_types - Degenerate Case 2 - NullType", b, result);
+		}
+	};
+
+#endif //DATAGENERATORSTEST_H