COLS - number of columns on terminal screen
cc [ flag... ] file... –I /usr/xpg4/include –L /usr/xpg4/lib \ –R /usr/xpg4/lib –lcurses [ library... ] c89 [ flag... ] file... –lcurses [ library ... ] #include <curses.h> extern int COLS;
The external variable COLS indicates the number of columns on the terminal screen.
See attributes(5) for descriptions of the following attributes:
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initscr(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5)