WIP

common.hh

@@ -12,15 +12,23 @@
 #include <SDL2/SDL_ttf.h>
 
 using namespace gl;
+using namespace std::string_literals;
 
 class Exception {
 public:
-  Exception() {
+  Exception() : msg_() {
   }
 
+  Exception(std::string msg) : msg_(msg) {
+  }
+  
   virtual ~Exception() {}
 
-  virtual std::string toString() const = 0;
+  virtual std::string toString() const {
+    return "Exception: "s + msg_;
+  }
+protected:
+  std::string msg_;
 };
 
 class POSIXException : public Exception {
@@ -31,7 +39,7 @@ public:
   int getErr() const {return err_;}
   
   std::string toString() const override {
-    return std::string("POSIXException: ") + std::strerror(err_);
+    return "POSIXException: "s + std::strerror(err_);
   }
 
 private:
@@ -66,7 +74,7 @@ public:
   }
   
   std::string toString() const override {
-    return "GLException: " + errToString() + "(" + std::to_string(static_cast<int>(err_)) + ")";
+    return "GLException: "s + errToString() + "(" + std::to_string(static_cast<int>(err_)) + ")";
   }
   
 private:
@@ -75,28 +83,22 @@ private:
 
 class SDLException : public Exception {
 public:
-  SDLException() : Exception(), msg_(SDL_GetError()) {
+  SDLException() : Exception(SDL_GetError()) {
   }
 
   std::string toString() const override {
-    return "SDLException: " + msg_;
+    return "SDLException: "s + msg_;
   }
-
-private:
-  std::string msg_;
 };
 
 class TTFException : public Exception {
 public:
-  TTFException() : Exception(), msg_(TTF_GetError()) {
+  TTFException() : Exception(TTF_GetError()) {
   }
 
   std::string toString() const override {
-    return "TTFException: " + msg_;
+    return "TTFException: "s + msg_;
   }
-
-private:
-  std::string msg_;
 };
 
 static void checkGlError() {