getw, putw - input and output of words (ints)
int getw(FILE *stream));
int putw(int w, FILE *stream));
getw reads a word (that is, an int) from stream. It's pro-
vided for compatibility with SVID. We recommend you use
putw writes the word w (that is, an int) to stream. It is
provided for compatibility with SVID, but we recommend you
use fwrite(3) instead.
Normally, getw returns the word read, and putw returns the
word written. On error, they return EOF.
The value returned on error is also a legitimate data value.
ferror(3) can be used to distinguish between the two cases.
fread(3), fwrite(3), ferror(3),