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192 lines
6.2 KiB
192 lines
6.2 KiB
/**************************************************************************** |
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* include/stdlib.h |
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* |
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* Copyright (C) 2007-2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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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 NuttX 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 __INCLUDE_STDLIB_H |
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#define __INCLUDE_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 <nuttx/compiler.h> |
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#include <sys/types.h> |
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#include <stdint.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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* successful 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 NULL pointer should be defined in this file but is currently defined |
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* in sys/types.h. |
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*/ |
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/* Maximum value returned by rand() */ |
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#define MAX_RAND 32767 |
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/* Integer expression whose value is the maximum number of bytes in a |
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* character specified by the current locale. |
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*/ |
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#define MB_CUR_MAX 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(FAR const char *name); |
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EXTERN int putenv(FAR const 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) noreturn_function; |
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EXTERN void abort(void) noreturn_function; |
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#ifdef CONFIG_SCHED_ATEXIT |
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EXTERN int atexit(CODE void (*func)(void)); |
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#endif |
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#ifdef CONFIG_SCHED_ONEXIT |
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EXTERN int on_exit(CODE void (*func)(int, FAR void *), FAR void *arg); |
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#endif |
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/* String to binary conversions */ |
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EXTERN long strtol(const char *, char **, int); |
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EXTERN unsigned long strtoul(const char *, char **, int); |
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#ifdef CONFIG_HAVE_LONG_LONG |
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EXTERN long long strtoll(const char *, char **, int); |
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EXTERN unsigned long long strtoull(const char *, char **, int); |
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#endif |
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EXTERN double_t strtod(const char *, char **); |
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#define atoi(nptr) strtol((nptr), NULL, 10) |
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#define atol(nptr) strtol((nptr), NULL, 10) |
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#ifdef CONFIG_HAVE_LONG_LONG |
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#define atoll(nptr) strtoll((nptr), NULL, 10) |
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#endif |
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#define atof(nptr) strtod((nptr), NULL) |
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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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/* Misc */ |
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EXTERN int abs(int j); |
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EXTERN long int labs(long int j); |
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#ifdef CONFIG_HAVE_LONG_LONG |
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EXTERN long long int llabs(long long int j); |
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#endif |
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/* Sorting */ |
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EXTERN void qsort(void *base, size_t nmemb, size_t size, |
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int(*compar)(const void *, const void *)); |
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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 /* __INCLUDE_STDLIB_H */
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