modify nuttx bug of lack of files

2021-06-11 11:25:07 +08:00
parent 4a7f51a5e9
commit 6d0f2ca39a
6752 changed files with 1528133 additions and 0 deletions
@@ -0,0 +1,104 @@
+/****************************************************************************
+ * include/stdbool.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_STDBOOL_H
+#define __INCLUDE_STDBOOL_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/* If CONFIG_ARCH_STDBOOL_H is set, then the architecture will provide its
+ * own stdbool.h file.  In this case, this header file will simply re-direct
+ * to the architecture-specfic 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 (3) 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>
+#  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)
+ */
+
+#ifndef __cplusplus
+#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
+#endif /* __cplusplus */
+
+/****************************************************************************
+ * 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 /* CONFIG_ARCH_STDBOOL_H */
+#endif /* __INCLUDE_STDBOOL_H */