2 files changed, 37 insertions, 26 deletions

diff --git a/src/Core/Exception.cpp b/src/Core/Exception.cpp
index 0029613..3e9da4d 100644
--- a/src/Core/Exception.cpp
+++ b/src/Core/Exception.cpp
@@ -24,45 +24,45 @@
 namespace Mad {
 namespace Core {
 
-std::string Exception::strerror() const {
-  std::string ret;
-
-  if(!where.empty())
-    ret = where + ": ";
+void Exception::updateWhatStr() {
+  if(where.empty())
+    whatStr.clear();
+  else
+    whatStr = where + ": ";
 
   switch(errorCode) {
     case SUCCESS:
-      return ret + "Success";
+      whatStr += "Success";
     case UNEXPECTED_PACKET:
-      return ret + "An unexpected packet was received";
+      whatStr += "An unexpected packet was received";
     case INVALID_ACTION:
-      return ret + "The action is invalid";
+      whatStr += "The action is invalid";
     case NOT_AVAILABLE:
-      return ret + "Not available";
+      whatStr += "Not available";
     case NOT_FINISHED:
-      return ret + "Not finished";
+      whatStr += "Not finished";
     case NOT_IMPLEMENTED:
-      return ret + "Not implemented";
+      whatStr += "Not implemented";
     case NOT_FOUND:
-      return ret + "Not found";
+      whatStr += "Not found";
     case INVALID_INPUT:
-      return ret + "Invalid input";
+      whatStr += "Invalid input";
     case PERMISSION:
-      return ret + "Permission denied";
+      whatStr += "Permission denied";
     case INTERNAL_ERRNO:
-      return ret + std::strerror(subCode);
+      whatStr += std::strerror(subCode);
     case INVALID_ADDRESS:
-      return ret + "Invalid address";
+      whatStr += "Invalid address";
     case ALREADY_IDENTIFIED:
-      return ret + "The host is already identified";
+      whatStr += "The host is already identified";
     case UNKNOWN_DAEMON:
-      return ret + "The daemon is unknown";
+      whatStr += "The daemon is unknown";
     case DUPLICATE_ENTRY:
-      return ret + "Duplicate entry";
+      whatStr += "Duplicate entry";
     case AUTHENTICATION:
-      return ret + "Authentication failure";
+      whatStr += "Authentication failure";
     default:
-      return ret + "Unknown error";
+      whatStr += "Unknown error";
   }
 }
 
diff --git a/src/Core/Exception.h b/src/Core/Exception.h
index fb6fae7..f12b3df 100644
--- a/src/Core/Exception.h
+++ b/src/Core/Exception.h
@@ -22,12 +22,13 @@
 
 #include "export.h"
 
+#include <exception>
 #include <string>
 
 namespace Mad {
 namespace Core {
 
-class MAD_CORE_EXPORT Exception {
+class MAD_CORE_EXPORT Exception : public std::exception {
   public:
     enum ErrorCode {
       SUCCESS = 0x0000, UNEXPECTED_PACKET = 0x0001, INVALID_ACTION = 0x0002, NOT_AVAILABLE = 0x0003, NOT_FINISHED = 0x0004, NOT_IMPLEMENTED = 0x0005,
@@ -46,18 +47,28 @@ class MAD_CORE_EXPORT Exception {
     long subCode;
     long subSubCode;
 
+    std::string whatStr;
+
+    void updateWhatStr();
+
   public:
     Exception(const std::string &where0, ErrorCode errorCode0 = SUCCESS, long subCode0 = 0, long subSubCode0 = 0)
-    : where(where0), errorCode(errorCode0), subCode(subCode0), subSubCode(subSubCode0) {}
-    Exception(ErrorCode errorCode0 = SUCCESS, long subCode0 = 0, long subSubCode0 = 0) : errorCode(errorCode0), subCode(subCode0), subSubCode(subSubCode0) {}
-    virtual ~Exception() {}
+    : where(where0), errorCode(errorCode0), subCode(subCode0), subSubCode(subSubCode0) {
+      updateWhatStr();
+    }
+    Exception(ErrorCode errorCode0 = SUCCESS, long subCode0 = 0, long subSubCode0 = 0) : errorCode(errorCode0), subCode(subCode0), subSubCode(subSubCode0) {
+      updateWhatStr();
+    }
+    virtual ~Exception() throw () {}
 
     const std::string& getWhere() const {return where;}
     ErrorCode getErrorCode() const {return errorCode;}
     long getSubCode() const {return subCode;}
     long getSubSubCode() const {return subSubCode;}
 
-    std::string strerror() const;
+    virtual const char* what() const throw () {
+      return whatStr.c_str();
+    }
 
     operator bool() const {
       return (errorCode != SUCCESS);