diff options
Diffstat (limited to 'nuttx/include/stdlib.h')
-rw-r--r-- | nuttx/include/stdlib.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/nuttx/include/stdlib.h b/nuttx/include/stdlib.h new file mode 100644 index 000000000..27696e0fa --- /dev/null +++ b/nuttx/include/stdlib.h @@ -0,0 +1,192 @@ +/**************************************************************************** + * include/stdlib.h + * + * Copyright (C) 2007-2012 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_STDLIB_H +#define __INCLUDE_STDLIB_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <nuttx/compiler.h> +#include <sys/types.h> +#include <stdint.h> + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* The C standard specifies two constants, EXIT_SUCCESS and + * EXIT_FAILURE, that may be passed to exit() to indicate + * successful or unsucessful termination, respectively. + */ + +#define EXIT_SUCCESS 0 +#define EXIT_FAILURE 1 + +/* The NULL pointer should be defined in this file but is currently defined + * in sys/types.h. + */ + +/* Maximum value returned by rand() */ + +#define MAX_RAND 32767 + +/* Integer expression whose value is the maximum number of bytes in a + * character specified by the current locale. + */ + +#define MB_CUR_MAX 1 + +/* The environ variable, normally 'extern char **environ;' is + * not implemented as a function call. However, get_environ_ptr() + * can be used in its place. + */ + +#ifndef CONFIG_DISABLE_ENIVRON +# define environ get_environ_ptr() +#endif + +/**************************************************************************** + * Global Type Definitions + ****************************************************************************/ + +struct mallinfo +{ + int arena; /* This is the total size of memory allocated + * for use by malloc in bytes. */ + int ordblks; /* This is the number of free (not in use) chunks */ + int mxordblk; /* Size of the largest free (not in use) chunk */ + int uordblks; /* This is the total size of memory occupied by + * chunks handed out by malloc. */ + int fordblks; /* This is the total size of memory occupied + * by free (not in use) chunks.*/ +}; + +/**************************************************************************** + * Global Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Global Function Prototypes + ****************************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +/* Random number generation */ + +EXTERN void srand(unsigned int seed); +EXTERN int rand(void); + +/* Environment variable support */ + +#ifndef CONFIG_DISABLE_ENIVRON +EXTERN FAR char **get_environ_ptr( void ); +EXTERN FAR char *getenv(FAR const char *name); +EXTERN int putenv(FAR const char *string); +EXTERN int clearenv(void); +EXTERN int setenv(const char *name, const char *value, int overwrite); +EXTERN int unsetenv(const char *name); +#endif + +/* Process exit functions */ + +EXTERN void exit(int status) noreturn_function; +EXTERN void abort(void) noreturn_function; +#ifdef CONFIG_SCHED_ATEXIT +EXTERN int atexit(CODE void (*func)(void)); +#endif +#ifdef CONFIG_SCHED_ONEXIT +EXTERN int on_exit(CODE void (*func)(int, FAR void *), FAR void *arg); +#endif + +/* String to binary conversions */ + +EXTERN long strtol(const char *, char **, int); +EXTERN unsigned long strtoul(const char *, char **, int); +#ifdef CONFIG_HAVE_LONG_LONG +EXTERN long long strtoll(const char *, char **, int); +EXTERN unsigned long long strtoull(const char *, char **, int); +#endif +EXTERN double_t strtod(const char *, char **); + +#define atoi(nptr) strtol((nptr), NULL, 10) +#define atol(nptr) strtol((nptr), NULL, 10) +#ifdef CONFIG_HAVE_LONG_LONG +#define atoll(nptr) strtoll((nptr), NULL, 10) +#endif +#define atof(nptr) strtod((nptr), NULL) + +/* Memory Management */ + +EXTERN FAR void *malloc(size_t); +EXTERN void free(FAR void*); +EXTERN FAR void *realloc(FAR void*, size_t); +EXTERN FAR void *memalign(size_t, size_t); +EXTERN FAR void *zalloc(size_t); +EXTERN FAR void *calloc(size_t, size_t); + +/* Misc */ + +EXTERN int abs(int j); +EXTERN long int labs(long int j); +#ifdef CONFIG_HAVE_LONG_LONG +EXTERN long long int llabs(long long int j); +#endif + +/* Sorting */ + +EXTERN void qsort(void *base, size_t nmemb, size_t size, + int(*compar)(const void *, const void *)); + +#ifdef CONFIG_CAN_PASS_STRUCTS +EXTERN struct mallinfo mallinfo(void); +#else +EXTERN int mallinfo(struct mallinfo *info); +#endif + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __INCLUDE_STDLIB_H */ |