193 lines
6.2 KiB
C
193 lines
6.2 KiB
C
/****************************************************************************
|
|
* 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 */
|