iscntrl

Tests for a control character (a character whose value is 0-31).

Library:LibC

Classification:ANSI

Service:Characters and Strings

Syntax

  #include <ctype.h> 
   
  int iscntrl (
     int   c);

Parameters

c: (IN) Specifies the character to be tested.

Return Values

Returns a nonzero value when the argument is a control character. Otherwise, it returns zero.

See Also