move Exception to backend

3 files changed, 37 insertions, 0 deletions

diff --git a/backend/CMakeLists.txt b/backend/CMakeLists.txt
index e0c377b..b7e8996 100644
--- a/backend/CMakeLists.txt
+++ b/backend/CMakeLists.txt
@@ -15,5 +15,6 @@ target_sources(main PUBLIC
 	String.cpp
 	print.cpp
 	Player.cpp
+	Exception.cpp
 )
 
diff --git a/backend/Exception.cpp b/backend/Exception.cpp
new file mode 100644
index 0000000..4044d6a
--- /dev/null
+++ b/backend/Exception.cpp
@@ -0,0 +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 this->error.c_str();
+}
+
+Exception::Exception(const char * fmt, ...) {
+	va_list args;
+	va_start(args, fmt);
+	this->error = String::va_fmt(args, fmt);
+	va_end(args);
+}
+
diff --git a/backend/Exception.h b/backend/Exception.h
new file mode 100644
index 0000000..bc65aa0
--- /dev/null
+++ b/backend/Exception.h
@@ -0,0 +1,14 @@
+#pragma once
+
+#include "backend/String.h"
+
+class Exception {
+public:
+	Exception(const char * fmt, ...);
+	const char * what();
+
+protected:
+	Exception() = default;
+	String error;
+};
+