.TH  NUL "" "" Definition
.PC
.PP
.B NUL
is the ASCII null character `\e0' \(em i.e., the character with the
value zero.
Do not confuse it with the null pointer NULL or with the empty string "".
A C-language string is always terminated with a NUL.
The empty string "" is an array of
.BR char s
with only one element, namely a NUL.
.SH "See Also"
.Xr "ASCII," ascii
.Xr "NULL," null
.Xr "Programming COHERENT" programmi
