Exceptions have been re-worked, and are easier to use, and don't collide with

system includues anymore.

1 files changed, 99 insertions, 0 deletions

diff --git a/src/exceptionbase.h b/src/exceptionbase.h
new file mode 100644
index 0000000..c0ced37
--- /dev/null
+++ b/src/exceptionbase.h
@@ -0,0 +1,99 @@
+#ifndef EXCEPTION_BASE_H
+#define EXCEPTION_BASE_H
+
+#include <string>
+#include <exception>
+#include <stdarg.h>
+
+/**
+ * A generalized Exception base class.  This is nice for making general and
+ * flexible child classes that can create new error code classes.
+ */
+class ExceptionBase : public std::exception
+{
+public:
+        /**
+         * Construct an exception with an error code of zero, but with a
+         * description.  The use of this is not reccomended most of the time, it's
+         * generally best to include an error code with the exception so your
+         * program can handle the exception in a better way.
+         * @param sFormat The format of the text.  See printf for more info.
+         */
+        ExceptionBase( const char *sFormat, ... ) throw();
+        
+        /**
+         * 
+         * @param nCode 
+         * @param sFormat
+         */
+        ExceptionBase( int nCode, const char *sFormat, ... ) throw();
+        
+        /**
+         * 
+         * @param nCode 
+         * @return 
+         */
+        ExceptionBase( int nCode=0 ) throw();
+        
+        /**
+         * 
+         * @return 
+         */
+        virtual ~ExceptionBase() throw();
+
+        /**
+         * 
+         * @return 
+         */
+        virtual const char *what() const throw();
+        
+        /**
+         * 
+         * @return 
+         */
+        int getErrorCode();
+        
+        /**
+         * 
+         * @param lpFormat 
+         * @param vargs 
+         */
+        void setWhat( const char *lpFormat, va_list &vargs );
+
+private:
+        char *sWhat;    /**< The text string telling people what went wrong. */
+        int nErrorCode; /**< The code for the error that occured. */
+};
+
+#define subExceptionDecl( name )                                                                                        \
+class name : public ExceptionBase                                                                                       \
+{                                                                                                                                                       \
+        public:                                                                                                                                 \
+                name( const char *sFormat, ... ) throw ();                                                      \
+                name( int nCode, const char *sFormat, ... ) throw();                            \
+                name( int nCode=0 ) throw ();                                                                           \
+};
+
+#define subExceptionDef( name )                                                                                         \
+name::name( const char *lpFormat, ... ) throw() :                                                       \
+        ExceptionBase( 0 )                                                                                                              \
+{                                                                                                                                                       \
+        va_list ap;                                                                                                                             \
+        va_start( ap, lpFormat );                                                                                               \
+        setWhat( lpFormat, ap );                                                                                                \
+        va_end( ap );                                                                                                                   \
+}                                                                                                                                                       \
+name::name( int nCode, const char *lpFormat, ... ) throw() :                            \
+        ExceptionBase( nCode )                                                                                                  \
+{                                                                                                                                                       \
+        va_list ap;                                                                                                                             \
+        va_start( ap, lpFormat );                                                                                               \
+        setWhat( lpFormat, ap );                                                                                                \
+        va_end( ap );                                                                                                                   \
+}                                                                                                                                                       \
+name::name( int nCode ) throw() :                                                                                       \
+        ExceptionBase( nCode )                                                                                                  \
+{                                                                                                                                                       \
+}
+
+#endif