modify exception

Author: mxydls

Exception/MailClientException.h

@@ -9,16 +9,12 @@ class MailClientException: public exception
 {
 public:
     MailClientException() {}
-    MailClientException(string exc): exception(exc.c_str()) {}
-    virtual ~MailClientException() {
-        exception::~exception();
-    }
-    const char* what() const override{
-        string tmp = exception::what();
-        tmp = "MailClientException: " + tmp;
-        return tmp.c_str();
-    }
+    MailClientException(const string& exc): exception(exc.c_str()) {}
+    MailClientException(const MailClientException& mce): exception(mce) {}
+    virtual ~MailClientException() throw() = 0;
+    virtual const char* what() const = 0;
 };
 
+MailClientException::~exception() {}
 
 #endif // MAILCLIENTEXCEPTION_H

Exception/MailGenerationException.h

@@ -6,10 +6,9 @@ class MailGenerationException: public MailClientException
 {
 public:
     MailGenerationException() {}
-    MailGenerationException(string exc): MailClientException(exc.c_str()) {}
-    virtual ~MailGenerationException() {
-        MailClientException::~MailClientException();
-    }
+    MailGenerationException(const string& exc): MailClientException(exc.c_str()) {}
+    MailClientException(const MailClientException& mce): MailClientException(mce) {}
+    ~MailGenerationException() override {}
     const char* what() const override{
         string tmp = MailClientException::what();
         tmp = "MailGenerationException: " + tmp;

Exception/MailReceiveException.h

@@ -6,10 +6,9 @@ class MailReceiveException: public MailClientException
 {
 public:
     MailReceiveException() {}
-    MailReceiveException(string exc): MailClientException(exc.c_str()) {}
-    virtual ~MailReceiveException() {
-        MailClientException::~MailClientException();
-    }
+    MailReceiveException(const string& exc): MailClientException(exc.c_str()) {}
+    MailClientException(const MailClientException& mce): MailClientException(mce) {}
+    ~MailReceiveException() override {}
     const char* what() const override{
         string tmp = MailClientException::what();
         tmp = "MailGenerationException: " + tmp;

Exception/MailSendException.h

@@ -6,10 +6,9 @@ class MailSendException: public MailClientException
 {
 public:
     MailSendException() {}
-    MailSendException(string exc): MailClientException(exc.c_str()) {}
-    virtual ~MailSendException() {
-        MailClientException::~MailClientException();
-    }
+    MailSendException(const string& exc): MailClientException(exc.c_str()) {}
+    MailClientException(const MailClientException& mce): MailClientException(mce) {}
+    ~MailSendException() override {}
     const char* what() const override{
         string tmp = MailClientException::what();
         tmp = "MailGenerationException: " + tmp;

MicroMailClient.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 3.6.1, 2016-05-27T20:11:28. -->
+<!-- Written by QtCreator 3.6.1, 2016-05-27T22:41:34. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>