Name
iscntrl function — Tests for a control character
Synopsis
int iscntrl(int c)The iscntrl function
returns true (nonzero) if c is a
control character. The set of control characters depends on the
locale and character set. In the 7-bit ASCII character set, the
control characters are '\0'-'\x1F' and '\x7F'; other implementations might have
different control characters. By definition, a control character is
any character that is not a printable character (isprint).
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