Use a common base for a couple exceptions

1 files changed, 8 insertions, 10 deletions

diff --git a/common/alexcpt.h b/common/alexcpt.h
index ff09bab2..b399e8f7 100644
--- a/common/alexcpt.h
+++ b/common/alexcpt.h
@@ -1,28 +1,26 @@
 #ifndef ALEXCPT_H
 #define ALEXCPT_H
 
+#include <cstdarg>
 #include <exception>
 #include <string>
+#include <utility>
 
 #include "AL/alc.h"
 
 
-#ifdef __GNUC__
-#define ALEXCPT_FORMAT(x, y, z) __attribute__((format(x, (y), (z))))
-#else
-#define ALEXCPT_FORMAT(x, y, z)
-#endif
-
-
 namespace al {
 
-class backend_exception final : public std::exception {
+class base_exception : public std::exception {
     std::string mMessage;
     ALCenum mErrorCode;
 
-public:
-    backend_exception(ALCenum code, const char *msg, ...) ALEXCPT_FORMAT(printf, 3,4);
+protected:
+    base_exception(ALCenum code) : mErrorCode{code} { }
 
+    void setMessage(const char *msg, std::va_list args);
+
+public:
     const char *what() const noexcept override { return mMessage.c_str(); }
     ALCenum errorCode() const noexcept { return mErrorCode; }
 };