If I had been thick enough to declare c as an unsigned char, it would have taken a good bit more than 50% of the time, and wouldn't have worked at all.

On Fri, May 15, 2020 at 4:02 PM <ron@ronnatalie.com> wrote:

Unfortunately, if c is char on a machine with unsigned chars, or it’s of type unsigned char, the EOF will never be detected.

while ((c = getchar()) != EOF) if (c == '\n') { /* entire record is now there */