Added the bound_function_pointer object.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%402669

dlib/bound_function_pointer.h

+// Copyright (C) 2008  Davis E. King (davisking@users.sourceforge.net)
+// License: Boost Software License   See LICENSE.txt for the full license.
+#ifndef DLIB_BOUND_FUNCTION_POINTEr_
+#define DLIB_BOUND_FUNCTION_POINTEr_
+
+#include "bound_function_pointer/bound_function_pointer_kernel_1.h"
+#include "bound_function_pointer/bound_function_pointer_kernel_c.h"
+
+namespace dlib
+{
+
+    class bound_function_pointer 
+    {
+        bound_function_pointer() {}
+
+
+    public:
+        
+        //----------- kernels ---------------
+
+        // kernel_1a        
+        typedef      bound_function_pointer_kernel_1 
+                     kernel_1a;
+        typedef      bound_function_pointer_kernel_c<kernel_1a>
+                     kernel_1a_c;
+           
+
+    };
+}
+
+#endif // DLIB_BOUND_FUNCTION_POINTEr_ 
+
+

dlib/bound_function_pointer/bound_function_pointer_kernel_c.h

+// Copyright (C) 2008  Davis E. King (davisking@users.sourceforge.net)
+// License: Boost Software License   See LICENSE.txt for the full license.
+#ifndef DLIB_BOUND_FUNCTION_POINTER_KERNEl_C_
+#define DLIB_BOUND_FUNCTION_POINTER_KERNEl_C_
+
+#include "bound_function_pointer_kernel_abstract.h"
+#include "../algs.h"
+#include "../assert.h"
+
+namespace dlib
+{
+
+
+    template <
+        typename bound_function_pointer_base // is an implementation of bound_function_pointer_kernel_abstract.h
+        >
+    class bound_function_pointer_kernel_c : public bound_function_pointer_base
+    {
+        public:
+
+            void operator () (
+            ) const;
+
+    };
+
+    template <
+        typename bound_function_pointer_base
+        >
+    inline void swap (
+        bound_function_pointer_kernel_c<bound_function_pointer_base>& a, 
+        bound_function_pointer_kernel_c<bound_function_pointer_base>& b 
+    ) { a.swap(b); }
+
+// ----------------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------------------
+    // member function definitions
+// ----------------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------------------
+
+    template <
+        typename bound_function_pointer_base
+        >
+    void bound_function_pointer_kernel_c<bound_function_pointer_base>::
+    operator() (
+    ) const
+    {
+
+        // make sure requires clause is not broken
+        DLIB_CASSERT(this->is_set() == true ,
+                "\tvoid bound_function_pointer::operator()"
+                << "\n\tYou must call set() before you can use this function"
+                << "\n\tthis: " << this
+        );
+
+        // call the real function
+        bound_function_pointer_base::operator()();
+
+    }
+
+// ----------------------------------------------------------------------------------------
+
+}
+
+#endif // DLIB_BOUND_FUNCTION_POINTER_KERNEl_C_
+
+