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diff --git a/gcc/rust/util/rust-operators.h b/gcc/rust/util/rust-operators.h
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+++ b/gcc/rust/util/rust-operators.h
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+// Copyright (C) 2020-2023 Free Software Foundation, Inc.
+
+// This file is part of GCC.
+
+// GCC is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 3, or (at your option) any later
+// version.
+
+// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with GCC; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#ifndef RUST_OPERATOR_H
+#define RUST_OPERATOR_H
+
+enum class NegationOperator
+{
+  NEGATE,
+  NOT
+};
+
+enum class ArithmeticOrLogicalOperator
+{
+  ADD,	       // std::ops::Add
+  SUBTRACT,    // std::ops::Sub
+  MULTIPLY,    // std::ops::Mul
+  DIVIDE,      // std::ops::Div
+  MODULUS,     // std::ops::Rem
+  BITWISE_AND, // std::ops::BitAnd
+  BITWISE_OR,  // std::ops::BitOr
+  BITWISE_XOR, // std::ops::BitXor
+  LEFT_SHIFT,  // std::ops::Shl
+  RIGHT_SHIFT  // std::ops::Shr
+};
+
+enum class ComparisonOperator
+{
+  EQUAL,	    // std::cmp::PartialEq::eq
+  NOT_EQUAL,	    // std::cmp::PartialEq::ne
+  GREATER_THAN,	    // std::cmp::PartialEq::gt
+  LESS_THAN,	    // std::cmp::PartialEq::lt
+  GREATER_OR_EQUAL, // std::cmp::PartialEq::ge
+  LESS_OR_EQUAL	    // std::cmp::PartialEq::le
+};
+
+enum class LazyBooleanOperator
+{
+  LOGICAL_OR,
+  LOGICAL_AND
+};
+
+enum class CompoundAssignmentOperator
+{
+  ADD,	       // std::ops::AddAssign
+  SUBTRACT,    // std::ops::SubAssign
+  MULTIPLY,    // std::ops::MulAssign
+  DIVIDE,      // std::ops::DivAssign
+  MODULUS,     // std::ops::RemAssign
+  BITWISE_AND, // std::ops::BitAndAssign
+  BITWISE_OR,  // std::ops::BitOrAssign
+  BITWISE_XOR, // std::ops::BitXorAssign
+  LEFT_SHIFT,  // std::ops::ShlAssign
+  RIGHT_SHIFT  // std::ops::ShrAssign
+};
+
+#endif // RUST_OPERATOR_H