Section: Linux Programmer's Manual (3)
getw, putw - input and output of words (ints)
int getw(FILE *stream);
int putw(int w, FILE *stream);
Feature Test Macro Requirements for glibc (see
- 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
reads a word (that is, an int
) from stream
It's provided for compatibility with SVr4.
We recommend you use
writes the word w (that is,
an int) to stream.
It is provided for compatibility with SVr4, but we recommend you use
returns the word read, and
On error, they return EOF
For an explanation of the terms used in this section, see
Not present in POSIX.1.
The value returned on error is also a legitimate data value.
can be used to distinguish between the two cases.
This page is part of release 5.02 of the Linux
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at