64 lines
2.6 KiB
C++
64 lines
2.6 KiB
C++
|
// Copyright 2010 Google Inc.
|
||
|
|
// All rights reserved.
|
||
|
|
//
|
||
|
|
// Redistribution and use in source and binary forms, with or without
|
||
|
|
// modification, are permitted provided that the following conditions are
|
||
|
|
// met:
|
||
|
|
//
|
||
|
|
// * Redistributions of source code must retain the above copyright
|
||
|
|
// notice, this list of conditions and the following disclaimer.
|
||
|
|
// * Redistributions in binary form must reproduce the above copyright
|
||
|
|
// notice, this list of conditions and the following disclaimer in the
|
||
|
|
// documentation and/or other materials provided with the distribution.
|
||
|
|
// * Neither the name of Google Inc. nor the names of its contributors
|
||
|
|
// may be used to endorse or promote products derived from this software
|
||
|
|
// without specific prior written permission.
|
||
|
|
//
|
||
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
|
||
|
|
/// \file utils/defs.hpp
|
||
|
|
///
|
||
|
|
/// Definitions for compiler and system features autodetected at configuration
|
||
|
|
/// time.
|
||
|
|
|
||
|
|
#if !defined(UTILS_DEFS_HPP)
|
||
|
|
#define UTILS_DEFS_HPP
|
||
|
|
|
||
|
|
|
||
|
|
/// Attribute to mark a function as non-returning.
|
||
|
|
#define UTILS_NORETURN __attribute__((noreturn))
|
||
|
|
|
||
|
|
|
||
|
|
/// Attribute to mark a function as pure.
|
||
|
|
#define UTILS_PURE __attribute__((__pure__))
|
||
|
|
|
||
|
|
|
||
|
|
/// Attribute to mark an entity as unused.
|
||
|
|
#define UTILS_UNUSED __attribute__((__unused__))
|
||
|
|
|
||
|
|
|
||
|
|
/// Macro to mark a parameter as unused.
|
||
|
|
///
|
||
|
|
/// This macro has to be called on the name of a parameter during the
|
||
|
|
/// definition (not declaration) of a function. When doing so, it declares
|
||
|
|
/// the parameter as unused to silence compiler warnings and also renames
|
||
|
|
/// the parameter by prefixing "unused_" to it. This is to ensure that the
|
||
|
|
/// developer remembers to remove the call to this macro from the parameter
|
||
|
|
/// when he actually starts using it.
|
||
|
|
///
|
||
|
|
/// \param name The name of the function parameter to mark as unused.
|
||
|
|
#define UTILS_UNUSED_PARAM(name) unused_ ## name UTILS_UNUSED
|
||
|
|
|
||
|
|
|
||
|
|
#endif // !defined(UTILS_DEFS_HPP)
|