Added an is_config_reader template.

dlib/config_reader.h

@@ -8,6 +8,7 @@
 #include "tokenizer.h"
 
 #include "algs.h"
+#include "is_kind.h"
 
 
 namespace dlib
@@ -19,11 +20,15 @@ namespace dlib
         tokenizer::kernel_1a
         > config_reader;
 
+    template <> struct is_config_reader<config_reader> { const static bool value = true; };
+
 #ifndef DLIB_ISO_CPP_ONLY
     typedef config_reader_thread_safe_1<
         config_reader,
         map<std::string,void*>::kernel_1b
         > config_reader_thread_safe;
+
+    template <> struct is_config_reader<config_reader_thread_safe> { const static bool value = true; };
 #endif // DLIB_ISO_CPP_ONLY
 
 

dlib/is_kind.h

@@ -111,6 +111,19 @@ namespace dlib
         !*/
     };
 
+// ----------------------------------------------------------------------------------------
+
+    template <typename T>
+    struct is_config_reader : public default_is_kind_value  
+    {
+        /*!
+            - if (T is an implementation of config_reader/config_reader_kernel_abstract.h) then
+                - is_config_reader<T>::value == true
+            - else
+                - is_config_reader<T>::value == false
+        !*/
+    };
+
 // ----------------------------------------------------------------------------------------
 // ----------------------------------------------------------------------------------------
 //                              Implementation details