getw, putw - 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)):

getw(), putw():

    Since glibc 2.3.3:
        _XOPEN_SOURCE && ! (_POSIX_C_SOURCE >= 200112L)
            || /* glibc >= 2.19: */ _DEFAULT_SOURCE
            || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
    Before glibc 2.3.3:
        _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE

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.

Normally, getw() returns the word read, and putw() returns 0. On error, they return EOF.

ferror(3), fread(3), fwrite(3), getc(3), putc(3)