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allwpilib/wpiutil/src/main/native/include/wpi/util/nodiscard.h
Tyler Veness 7a04d6a6a2 Merge wpiformat configs (#8365)
After replacing the remaining include guards with `#pragma once`, I was
able to merge all the wpiformat configs into one file in the repo root.
This should make the config easier to reason about and maintain in the
future.
2025-11-11 22:00:42 -08:00

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// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#pragma once
// This should only be used on APIs that can be compiled as C or C++. If the API
// is C++ only, use [[nodiscard]] instead.
#ifndef WPI_NODISCARD
#ifdef __cplusplus
#define WPI_NODISCARD [[nodiscard]]
#elif defined(__GNUC__) || defined(__llvm__)
#define WPI_NODISCARD __attribute__((warn_unused_result))
#elif _MSC_VER
#define WPI_NODISCARD _Check_return_
#endif
#endif