1 files changed, 21 insertions, 2 deletions
diff --git a/project2/exceptions.cpp b/project2/exceptions.cpp
index 9aaeb07..ddf8e94 100644
--- a/project2/exceptions.cpp
+++ b/project2/exceptions.cpp
@@ -1,7 +1,26 @@
 #include "exceptions.h"
+#include <stdlib.h>
+#include <stdio.h>
 
-NotSupported::NotSupported(const std::string & what) :
-	std::runtime_error(what)
+numeric_error::numeric_error(int e) :
+	err(e),
+	buf(NULL)
 {
 }
 
+numeric_error::~numeric_error() throw()
+{
+	free(buf);
+}
+
+const char *
+numeric_error::what() const throw()
+{
+	if (!buf) {
+		if (asprintf(&buf, "%d", err) < 1) {
+			throw std::bad_alloc();
+		}
+	}
+	return buf;
+}
+