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-rw-r--r--src/common/overflow.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/common/overflow.h b/src/common/overflow.h
new file mode 100644
index 000000000..44d8e7e73
--- /dev/null
+++ b/src/common/overflow.h
@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <type_traits>
+#include "bit_cast.h"
+
+namespace Common {
+
+template <typename T>
+ requires(std::is_integral_v<T> && std::is_signed_v<T>)
+inline T WrappingAdd(T lhs, T rhs) {
+ using U = std::make_unsigned_t<T>;
+
+ U lhs_u = BitCast<U>(lhs);
+ U rhs_u = BitCast<U>(rhs);
+
+ return BitCast<T>(lhs_u + rhs_u);
+}
+
+} // namespace Common