1 files changed, 8 insertions, 3 deletions

diff --git a/backend/String.cpp b/backend/String.cpp
index 2b40c88..e387589 100644
--- a/backend/String.cpp
+++ b/backend/String.cpp
@@ -20,17 +20,22 @@ String::String(const char * c_str) {
 }
 
 String String::fmt(const char * fmt, ...) {
-	String out;
-	va_list args, args_copy;
+	va_list args;
 	va_start(args, fmt);
+	String out = String::va_fmt(args, fmt);
+	va_end(args);
+	return out;
+}
 
+String String::va_fmt(va_list args, const char * fmt) {
+	String out;
+	va_list args_copy;
 	va_copy(args_copy, args);
 	out._data_len = vsnprintf(NULL, 0, fmt, args_copy);
 	va_end(args_copy);
 
 	out._data = static_cast<char *>(malloc(out._data_len + 1));
 	vsnprintf(out._data, out._data_len + 1, fmt, args);
-	va_end(args);
 	return out;
 }