09a3864fd5
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@291 42af7a65-404d-4744-a932-0658087f49c3
148 lines
4.8 KiB
C
148 lines
4.8 KiB
C
/************************************************************
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* stdlib.h
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*
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* Copyright (C) 2007 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name Gregory Nutt nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************/
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#ifndef __STDLIB_H
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#define __STDLIB_H
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/************************************************************
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* Included Files
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************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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/************************************************************
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* Definitions
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************************************************************/
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/* The C standard specifies two constants, EXIT_SUCCESS and
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* EXIT_FAILURE, that may be passed to exit() to indicate
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* successfuol or unsucessful termination, respectively.
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*/
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#define EXIT_SUCCESS 0
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#define EXIT_FAILURE 1
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/* The environ variable, normally 'extern char **environ;' is
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* not implemented as a function call. However, get_environ_ptr()
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* can be used in its place.
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*/
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#ifndef CONFIG_DISABLE_ENIVRON
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# define environ get_environ_ptr()
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#endif
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/************************************************************
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* Global Type Definitions
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************************************************************/
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struct mallinfo
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{
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int arena; /* This is the total size of memory allocated
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* for use by malloc in bytes. */
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int ordblks; /* This is the number of free (not in use) chunks */
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int mxordblk; /* Size of the largest free (not in use) chunk */
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int uordblks; /* This is the total size of memory occupied by
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* chunks handed out by malloc. */
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int fordblks; /* This is the total size of memory occupied
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* by free (not in use) chunks.*/
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};
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/************************************************************
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* Global Function Prototypes
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************************************************************/
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/************************************************************
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* Global Function Prototypes
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************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/* Random number generation */
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EXTERN void srand(unsigned int seed);
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EXTERN int rand(void);
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/* Environment variable support */
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#ifndef CONFIG_DISABLE_ENIVRON
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EXTERN FAR char **get_environ_ptr( void );
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EXTERN FAR char *getenv(const char *name);
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EXTERN int putenv(char *string);
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EXTERN int clearenv(void);
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EXTERN int setenv(const char *name, const char *value, int overwrite);
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EXTERN int unsetenv(const char *name);
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#endif
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/* Process exit functions */
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EXTERN void exit(int status);
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EXTERN void abort(void);
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EXTERN int atexit(void (*func)(void));
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/* String to binary conversions */
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#define atoi(nptr) strtol((nptr), (FAR char**)NULL, 10)
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EXTERN long strtol(const char *, char **, int);
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EXTERN double_t strtod(const char *, char **);
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/* Memory Management */
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EXTERN FAR void *malloc(size_t);
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EXTERN void free(FAR void*);
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EXTERN FAR void *realloc(FAR void*, size_t);
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EXTERN FAR void *memalign(size_t, size_t);
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EXTERN FAR void *zalloc(size_t);
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EXTERN FAR void *calloc(size_t, size_t);
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#ifdef CONFIG_CAN_PASS_STRUCTS
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EXTERN struct mallinfo mallinfo(void);
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#else
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EXTERN int mallinfo(struct mallinfo *info);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __STDLIB_H */
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