clean up duplicated code

1 files changed, 5 insertions, 13 deletions

diff --git a/frontend/Exception.cpp b/frontend/Exception.cpp
index 423f4e9..c852f0a 100644
--- a/frontend/Exception.cpp
+++ b/frontend/Exception.cpp
@@ -1,30 +1,22 @@
 #include <cstdarg>
 #include <cstdio>
 #include <cstdlib>
+#include <cstring>
+
+#include "backend/String.h"
 
 #include "Exception.h"
 
 using namespace std;
 
 const char * Exception::what() {
-	return error.get();
-}
-
-void Exception::va_format(va_list args, const char * fmt) {
-	va_list args_copy;
-	va_copy(args_copy, args);
-	size_t sz = vsnprintf(NULL, 0, fmt, args_copy) + 1;
-	va_end(args_copy);
-
-	this->error = unique_ptr<char>(static_cast<char *>(malloc(sz)));
-
-	vsnprintf(this->error.get(), sz, fmt, args);
+	return this->error.get();
 }
 
 Exception::Exception(const char * fmt, ...) {
 	va_list args;
 	va_start(args, fmt);
-	va_format(args, fmt);
+	this->error = unique_ptr<char>(strdup(String::va_fmt(args, fmt).c_str()));
 	va_end(args);
 }