Determines whether the terminal has insert-line capability.
Curses Library (libcurses.a)
#include <curses.h>
has_il( )
The has_il subroutine determines whether a terminal has insert-line capability.
The has_il subroutine returns TRUE if terminal has insert-line capability and FALSE, if not.
To determine the insert capability of a terminal by returning TRUE or FALSE into the user-defined variable insert_line, enter:
int insert_line;
insert_line = has_il();