Input and output of words (ints)
#include <stdio.h> int getw(FILE *stream); int putw(int w, FILE *stream);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
Since glibc 2.3.3:
_SVID_SOURCE || _BSD_SOURCE ||
!(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600))
Before glibc 2.3.3:
_SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE
Normally, getw() returns the word read, and putw() returns 0. On error, they return EOF.
SVr4, SUSv2. Not present in POSIX.1-2001.
The value returned on error is also a legitimate data value. ferror(3) can be used to distinguish between the two cases.
This page is part of release 3.74 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 http://www.kernel.org/doc/man-pages/.