Added more tests for DLIB_MAKE_HAS_MEMBER_FUNCTION_TEST and also fixed unit

tests so they work on older versions of visual studio.

dlib/test/is_same_object.cpp

@@ -14,14 +14,20 @@ namespace
     dlib::logger dlog("test.is_same_object");
 
     DLIB_MAKE_HAS_MEMBER_FUNCTION_TEST(has_booya_template, void, template booya<int>, (std::string)const);
+    DLIB_MAKE_HAS_MEMBER_FUNCTION_TEST(has_booya2_template, void, template booya2<int>, (int)const);
     DLIB_MAKE_HAS_MEMBER_FUNCTION_TEST(has_funct_int, void, funct, (int));
     DLIB_MAKE_HAS_MEMBER_FUNCTION_TEST(has_funct_double, void, funct, (double));
+    DLIB_MAKE_HAS_MEMBER_FUNCTION_TEST(has_funct_f, float, funct_f, (int));
 
     class htest
     {
     public:
         template <typename EXP>
         void booya(std::string) const {}
+
+        template <typename EXP>
+        void booya2(EXP) const {}
+
         void funct(double) {}
     };
 
@@ -30,17 +36,28 @@ namespace
     public:
 
         void funct(int) {}
+
+        float funct_f(int) {}
     };
 
     void test_metaprog()
     {
+        DLIB_TEST(has_booya2_template<htest>::value  == true)
+        DLIB_TEST(has_booya2_template<htest2>::value == false)
+
+#if _MSC_VER > 1600 // there is a bug in visual studio 2010 and older that prevents this test from working
         DLIB_TEST(has_booya_template<htest>::value  == true)
+#endif
+
         DLIB_TEST(has_booya_template<htest2>::value == false)
 
         DLIB_TEST(has_funct_int<htest>::value  == false)
         DLIB_TEST(has_funct_int<htest2>::value == true)
         DLIB_TEST(has_funct_double<htest>::value  == true)
         DLIB_TEST(has_funct_double<htest2>::value == false)
+
+        DLIB_TEST(has_funct_f<htest>::value  == false)
+        DLIB_TEST(has_funct_f<htest2>::value == true)
     }
 
     class is_same_object_tester : public tester