null character

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null character

n.
A data control character that fills computer time by adding nonsignificant zeros to a data sequence.
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MAXWORD is defined to be 101 to allow room for a terminating null character.
EOF) if (isletter(c)) [ do [ if (size > 1) [ *p++ = c; size--; ] c = getchar(); ] while (isletter(c)); *p = ' 0'; return p - buf; ] return EOF; ] size is compared with 1 to ensure that there is room for the terminating null character.