wpiutil/src/main/native/include/wpi/util/nodiscard.h

// 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
[hal] Add [[nodiscard]] to HAL_WaitForNotifierAlarm() (#3085) As this is a C-compatible header, add a WPI_NODISCARD macro for compiler-specific C-compatible nodiscard attributes. 2021-01-14 20:00:55 -08:00			`// 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.`

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			`#pragma once`
[hal] Add [[nodiscard]] to HAL_WaitForNotifierAlarm() (#3085) As this is a C-compatible header, add a WPI_NODISCARD macro for compiler-specific C-compatible nodiscard attributes. 2021-01-14 20:00:55 -08:00
			`// 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`