a few exception-handling convenience definitions

1 files changed, 31 insertions, 0 deletions

diff --git a/include/konforka/exception.h b/include/konforka/exception.h
index 5e0bf96..dbfe27c 100644
--- a/include/konforka/exception.h
+++ b/include/konforka/exception.h
@@ -13,32 +13,63 @@
  */
 
 /**
  * @def CODEPOINT
  * the convenience definition of the parameters passed to the
  * konforka::code_point constructor.
  */
 #define	CODEPOINT __FILE__,__PRETTY_FUNCTION__,__LINE__
 /**
  * @def NOCODEPOINT
  * the convenience definition for the codepoint denoting no particular point in
  * code.
  */
 #define NOCODEPOINT "no information"
 
 /**
+ * @def KONFORKA_RETHROW
+ * the convenience definition for seeing the exception and rethrowing it further.
+ */
+#define KONFORKA_RETHROW catch(konforka::exception& e) { e.see(CODEPOINT); throw; }
+
+/**
+ * @def KONFORKA_E_ARGS
+ * the convenience definition for naming codepoint parameters
+ */
+#define KONFORKA_E_PARS const string& fi,const string& fu,int l,const string& w
+
+/**
+ * @def KONFORKA_E_CONS
+ * the convenience definition for passing parameters to constructor
+ */
+#define KONFORKA_E_CONS fi,fu,l,w
+
+/**
+ * @def KONFORKA_E_SUBCLASS
+ * the convenience definition for subclassing konforka exceptions
+ * @param base base class
+ * @param derived derived class
+ */
+#define KONFORKA_E_SUBCLASS(derived,base) \
+    class derived : public base { \
+	public: \
+		explicit derived(KONFORKA_E_PARS) \
+	        : base(KONFORKA_E_CONS) { } \
+    }
+
+/**
  * @brief The main konforka namespace.
  */
 namespace konforka {
     using std::string;
     using std::list;
 
     /**
      * @brief Pinpoint the code context.
      *
      * Class, holding the point in code, for instance, where the exception
      * occured.
      */
     class code_point {
 	public:
 	    /**
 	     * The string describing the point in code.