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Diffstat (limited to 'nuttx/include/stdbool.h')
-rw-r--r-- | nuttx/include/stdbool.h | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/nuttx/include/stdbool.h b/nuttx/include/stdbool.h deleted file mode 100644 index 6c3302549..000000000 --- a/nuttx/include/stdbool.h +++ /dev/null @@ -1,120 +0,0 @@ -/**************************************************************************** - * include/stdbool.h - * - * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * 3. Neither the name NuttX 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. - * - ****************************************************************************/ - -#ifndef __INCLUDE_STDBOOL_H -#define __INCLUDE_STDBOOL_H - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -/* If CONFIG_ARCH_STDBOOL_H is set, then the archecture will provide its own - * stdbool.h file. In this case, this header file will simply re-direct to - * the architecture-specfiic stdbool.h header file. - */ - -#ifdef CONFIG_ARCH_STDBOOL_H -# include <arch/stdbool.h> - -/* NuttX will insist that the sizeof(bool) is 8-bits. The sizeof of _Bool - * used by any specific compiler is implementation specific: It can vary from - * compiler-to-compiler and even vary between different versions of the same - * compiler. Compilers seems to be converging to sizeof(_Bool) == 1. If that - * is true for your compiler, you should define CONFIG_C99_BOOL8 in your NuttX - * configuration for better standards compatibility. - * - * CONFIG_C99_BOOL8 - Means (1) your C++ compiler has sizeof(_Bool) == 8, - * (2) your C compiler supports the C99 _Bool intrinsic type, and (2) that - * the C99 _Bool type also has size 1. - */ - -#else - - /* nuttx/compiler.h may also define or undefine CONFIG_C99_BOOL8 */ - -# include <nuttx/compiler.h> - -#if !defined(__cplusplus) || !defined(CONFIG_C99_BOOL8) -# include <stdint.h> - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/* bool, true, and false must be provided as macros so that they can be - * redefined by the application if necessary. - * - * NOTE: Under C99 'bool' is required to be defined to be the intrinsic type - * _Bool. However, in this NuttX context, we need backward compatibility - * to pre-C99 standards where _Bool is not an intrinsic type. Hence, we - * use _Bool8 as the underlying type (unless CONFIG_C99_BOOL8 is defined) - */ - -#ifdef CONFIG_C99_BOOL8 -# define bool _Bool -#else -# define bool _Bool8 -#endif - -#define true (bool)1 -#define false (bool)0 - -#define __bool_true_false_are_defined 1 - -/**************************************************************************** - * Public Types - ****************************************************************************/ - -/* A byte is the smallest address memory element (at least in architectures - * that do not support bit banding). The requirement is only that type _Bool - * be large enough to hold the values 0 and 1. We select uint8_t to minimize - * the RAM footprint of the executable. - * - * NOTE: We can't actually define the type _Bool here. Under C99 _Bool is - * an intrinsic type and cannot be the target of a typedef. However, in this - * NuttX context, we also need backward compatibility to pre-C99 standards - * where _Bool is not an intrinsic type. We work around this by using _Bool8 - * as the underlying type. - */ - -#ifndef CONFIG_C99_BOOL8 -typedef uint8_t _Bool8; -#endif - -#endif /* __cplusplus && CONFIG_C99_BOOL8 */ -#endif /* CONFIG_ARCH_STDBOOL_H */ -#endif /* __INCLUDE_STDBOOL_H */ |