attribute.h

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/*
  Copyright (c) 2020, 2024, Oracle and/or its affiliates.
 
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License, version 2.0,
  as published by the Free Software Foundation.
 
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  as designated in a particular file or component or in included license
  documentation.  The authors of MySQL hereby grant you an additional
  permission to link the program and your derivative works with the
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  This program 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
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*/
 
#ifndef MYSQL_HARNESS_STDX_ATTRIBUTE_INCLUDED
#define MYSQL_HARNESS_STDX_ATTRIBUTE_INCLUDED
 
#ifndef __has_builtin
#define __has_builtin(x) 0
#endif
 
// __has_cpp_attribute is available:
//
// - C++20
// - clang
// - gcc
// - msvc, since 15.8
#ifndef __has_cpp_attribute
#define __has_cpp_attribute(x) 0
#endif
 
#if __has_cpp_attribute(gnu::nonnull)
#define STDX_NONNULL [[gnu::nonnull]]
#else
#define STDX_NONNULL
#endif
 
#endif