Originální popis anglicky:
posix_memalign - aligned memory allocation (
ADVANCED REALTIME)
Návod, kniha: POSIX Programmer's Manual
#include <stdlib.h>
int posix_memalign(void **
memptr, size_t
alignment , size_t
size);
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().
Upon successful completion,
posix_memalign() shall return zero;
otherwise, an error number shall be returned to indicate the error.
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.
None.
The
posix_memalign() function is part of the Advisory Information option
and need not be provided on all implementations.
None.
None.
free() ,
malloc() , the Base Definitions volume of
IEEE Std 1003.1-2001,
<stdlib.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- 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
.
