The OpenNET Project / Index page

[ новости /+++ | форум | теги | ]

Интерактивная система просмотра системных руководств (man-ов)

 ТемаНаборКатегория 
 
 [Cписок руководств | Печать]

cfree (3)
  • cfree (3) ( FreeBSD man: Библиотечные вызовы )
  • >> cfree (3) ( Linux man: Библиотечные вызовы )
  •  

    NAME

    cfree - free allocated memory
     
    

    SYNOPSIS

    
    #include <stdlib.h>
    
    /* In SunOS 4 */
    int cfree(void *ptr);
    
    /* In glibc or FreeBSD libcompat */
    void cfree(void *ptr);
    
    /* In SCO OpenServer */
    void cfree(char *ptr, unsigned num, unsigned size);
    
    /* In Solaris watchmalloc.so.1 */
    void cfree(void *ptr, size_t nelem, size_t elsize);
    

    Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

    cfree(): _BSD_SOURCE || _SVID_SOURCE  

    DESCRIPTION

    This function should never be used. Use free(3) instead.  

    1-arg cfree

    In glibc, the function cfree() is a synonym for free(3), "added for compatibility with SunOS".

    Other systems have other functions with this name. The declaration is sometimes in <stdlib.h> and sometimes in <malloc.h>.  

    3-arg cfree

    Some SCO and Solaris versions have malloc libraries with a 3-argument cfree(), apparently as an analog to calloc(3).

    If you need it while porting something, add

    #define cfree(p, n, s) free((p))

    to your file.

    A frequently asked question is "Can I use free(3) to free memory allocated with calloc(3), or do I need cfree()? Answer: use free(3).

    An SCO manual writes: "The cfree routine is provided for compliance to the iBCSe2 standard and simply calls free. The num and size arguments to cfree are not used."  

    RETURN VALUE

    The SunOS version of cfree() (which is a synonym for free(3)) returns 1 on success and 0 on failure. In case of error, errno is set to EINVAL: the value of ptr was not a pointer to a block previously allocated by one of the routines in the malloc(3) family.  

    CONFORMING TO

    The 3-argument version of cfree() as used by SCO conforms to the iBCSe2 standard: Intel386 Binary Compatibility Specification, Edition 2.  

    SEE ALSO

    malloc(3)  

    COLOPHON

    This page is part of release 3.14 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    1-arg cfree
    3-arg cfree
    RETURN VALUE
    CONFORMING TO
    SEE ALSO
    COLOPHON


    Поиск по тексту MAN-ов: 




    Партнёры:
    PostgresPro
    Inferno Solutions
    Hosting by Hoster.ru
    Хостинг:

    Закладки на сайте
    Проследить за страницей
    Created 1996-2024 by Maxim Chirkov
    Добавить, Поддержать, Вебмастеру