CFREE(3)                   Linux Programmer's Manual                  CFREE(3)

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  allo-
       cated 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 3.74 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       http://www.kernel.org/doc/man-pages/.

                                  2007-07-26                          CFREE(3)

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