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/****************************************************************************
* 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 */
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