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7c524014c8
As this is a C-compatible header, add a WPI_NODISCARD macro for compiler-specific C-compatible nodiscard attributes.
22 lines
675 B
C
22 lines
675 B
C
// Copyright (c) FIRST and other WPILib contributors.
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// Open Source Software; you can modify and/or share it under the terms of
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// the WPILib BSD license file in the root directory of this project.
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#ifndef WPIUTIL_WPI_NODISCARD_H_
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#define WPIUTIL_WPI_NODISCARD_H_
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// This should only be used on APIs that can be compiled as C or C++. If the API
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// is C++ only, use [[nodiscard]] instead.
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#ifndef WPI_NODISCARD
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#ifdef __cplusplus
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#define WPI_NODISCARD [[nodiscard]]
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#elif defined(__GNUC__) || defined(__llvm__)
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#define WPI_NODISCARD __attribute__((warn_unused_result))
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#elif _MSC_VER
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#define WPI_NODISCARD _Check_return_
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#endif
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#endif
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#endif // WPIUTIL_WPI_NODISCARD_H_
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