Dynamic memory extensions
Extensions to the C Library Part II: Dynamic Allocation Functions, ISO/IEC TR 24731-2:2010, defines the following new components for the C standard library:
|
__STDC_ALLOC_LIB__
|
integer constant of type
long
indicating conformance level
(macro constant) |
|
Defined in header
<stdio.h>
|
|
|
(dynamic memory TR)
|
opens a fixed-size memory buffer as an I/O stream
(function) |
|
(dynamic memory TR)
|
opens a dynamically resized memory buffer as an I/O stream
(function) |
|
(dynamic memory TR)
|
variants of
sprintf
etc that write to automatically-allocated buffer and return a pointer to it
(function) |
|
(dynamic memory TR)
|
read from a stream into an automatically resized buffer until delimiter/end of line
(function) |
|
Defined in header
<string.h>
|
|
|
(dynamic memory TR)
|
allocate a copy of a string
(function) |
|
(dynamic memory TR)
|
allocate a copy of a string up to specified size
(function) |
This library extension also introduces assignment-allocation character
m
for use with
%s
,
%[
, and
%c
conversion specifiers in
fscanf
and
fwscanf
family of functions.
Notes
The functions
fmemopen
,
open_memstream
,
open_wmemstream
,
getdelim
,
getline
,
strdup
,
strndup
, and the extensions to
fscanf
are available in
POSIX (ISO/IEC 9945:2003)
.
The functions
asprintf
and
vasprintf
are available in Linux Standard Base (ISO/IEC IS 23360:2006)