fetch_read_word
while ((word = fetch_read_word(f)) != NULL) {
(word = fetch_read_word(f)) != NULL &&
while ((word = fetch_read_word(f)) != NULL) {
if ((word = fetch_read_word(f)) == NULL)
if ((word = fetch_read_word(f)) == NULL)
if ((word = fetch_read_word(f)) == NULL)