posix_memalign(3p) [suse man page]

POSIX_MEMALIGN(3P)					     POSIX Programmer's Manual						POSIX_MEMALIGN(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

       posix_memalign - aligned memory allocation (ADVANCED REALTIME)

SYNOPSIS

       #include <stdlib.h>

       int posix_memalign(void **memptr, size_t alignment, size_t size);

DESCRIPTION

       The posix_memalign() function shall allocate size bytes aligned on a boundary specified by alignment, and shall return  a  pointer  to  the
       allocated  memory  in  memptr.  The value of alignment shall be a multiple of sizeof( void *), that is also a power of two. Upon successful
       completion, the value pointed to by memptr shall be a multiple of alignment.

       The free() function shall deallocate memory that has previously been allocated by posix_memalign().

RETURN VALUE

       Upon successful completion, posix_memalign() shall return zero; otherwise, an error number shall be returned to indicate the error.

ERRORS

       The posix_memalign() function shall fail if:

       EINVAL The value of the alignment parameter is not a power of two multiple of sizeof( void *).

       ENOMEM There is insufficient memory available with the requested alignment.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       The posix_memalign() function is part of the Advisory Information option and need not be provided on all implementations.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       free(), malloc(), the Base Definitions volume of IEEE Std 1003.1-2001, <stdlib.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and  the  original  IEEE
       and  The  Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003							POSIX_MEMALIGN(3P)

Check Out this Related Man Page

FREE(3P)						     POSIX Programmer's Manual							  FREE(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

       free - free allocated memory

SYNOPSIS

       #include <stdlib.h>

       void free(void *ptr);

DESCRIPTION

       The free() function shall cause the space pointed to by ptr to be deallocated; that is, made available for further allocation. If ptr is  a
       null  pointer,  no  action  shall  occur.   Otherwise, if the argument does not match a pointer earlier returned by the calloc(), malloc(),
       posix_memalign(),  realloc(), or   strdup()  function, or if the space has been deallocated by a call to free() or realloc(), the  behavior
       is undefined.

       Any use of a pointer that refers to freed space results in undefined behavior.

RETURN VALUE

       The free() function shall not return a value.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       There is now no requirement for the implementation to support the inclusion of <malloc.h>.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       calloc(), malloc(), realloc(), the Base Definitions volume of IEEE Std 1003.1-2001, <stdlib.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
       and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003								  FREE(3P)

Linux and UNIX Man Pages

posix_memalign(3p) [suse man page]

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