GETW
Section: Linux Programmer's Manual (3)
Updated: 2016-03-15
Index
Return to Main Contents
NAME
getw, putw - input and output of words (ints)
SYNOPSIS
#include <stdio.h>
int getw(FILE *stream);
int putw(int w, FILE *stream);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
getw(),
putw():
-
- Since glibc 2.3.3:
-
_XOPEN_SOURCE && ! (_POSIX_C_SOURCE >= 200112L)
|| /* Glibc since 2.19: */ _DEFAULT_SOURCE
|| /* Glibc versions <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
- Before glibc 2.3.3:
-
_SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE
DESCRIPTION
getw()
reads a word (that is, an
int) from
stream.
It's provided for compatibility with SVr4.
We recommend you use
fread(3)
instead.
putw()
writes the word w (that is,
an int) to stream.
It is provided for compatibility with SVr4, but we recommend you use
fwrite(3)
instead.
RETURN VALUE
Normally,
getw()
returns the word read, and
putw()
returns 0.
On error, they return
EOF.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
| Interface | Attribute | Value
|
|
getw(),
putw()
| Thread safety | MT-Safe
|
CONFORMING TO
SVr4, SUSv2.
Not present in POSIX.1.
BUGS
The value returned on error is also a legitimate data value.
ferror(3)
can be used to distinguish between the two cases.
SEE ALSO
ferror(3),
fread(3),
fwrite(3),
getc(3),
putc(3)
COLOPHON
This page is part of release 4.13 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
https://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ATTRIBUTES
-
- CONFORMING TO
-
- BUGS
-
- SEE ALSO
-
- COLOPHON
-
|
|
- Running on 
-
:
: 