Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #592
Difficulty: Medium
Suppose we want to sort a huge collection of 1 trillion, 10^12, elements. Doing so with Selection Sort or Insertion Sort would require about n^2 = (10^12)^2 = 10^24 or 1 sextillion comparisons.
True or False?
Linux & Unix Commands - Search Man Pages

curses(3x) [bsd man page]

CURSES(3X)																CURSES(3X)

NAME
curses - screen functions with ``optimal'' cursor motion SYNOPSIS
cc [ flags ] files -lcurses -ltermcap [ libraries ] DESCRIPTION
These routines give the user a method of updating screens with reasonable optimization. They keep an image of the current screen, and the user sets up an image of a new one. Then the refresh() tells the routines to make the current screen look like the new one. In order to initialize the routines, the routine initscr() must be called before any of the other routines that deal with windows and screens are used. The routine endwin() should be called before exiting. SEE ALSO
Screen Updating and Cursor Movement Optimization: A Library Package, Ken Arnold, ioctl(2), getenv(3), tty(4), termcap(5) AUTHOR
Ken Arnold FUNCTIONS
addch(ch) add a character to stdscr addstr(str) add a string to stdscr box(win,vert,hor) draw a box around a window cbreak() set cbreak mode clear() clear stdscr clearok(scr,boolf) set clear flag for scr clrtobot() clear to bottom on stdscr clrtoeol() clear to end of line on stdscr delch() delete a character deleteln() delete a line delwin(win) delete win echo() set echo mode endwin() end window modes erase() erase stdscr flusok(win,boolf) set flush-on-refresh flag for win getch() get a char through stdscr getcap(name) get terminal capability name getstr(str) get a string through stdscr gettmode() get tty modes getyx(win,y,x) get (y,x) co-ordinates inch() get char at current (y,x) co-ordinates initscr() initialize screens insch(c) insert a char insertln() insert a line leaveok(win,boolf) set leave flag for win longname(termbuf,name) get long name from termbuf move(y,x) move to (y,x) on stdscr mvcur(lasty,lastx,newy,newx) actually move cursor newwin(lines,cols,begin_y,begin_x) create a new window nl() set newline mapping nocbreak() unset cbreak mode noecho() unset echo mode nonl() unset newline mapping noraw() unset raw mode overlay(win1,win2) overlay win1 on win2 overwrite(win1,win2) overwrite win1 on top of win2 printw(fmt,arg1,arg2,...) printf on stdscr raw() set raw mode refresh() make current screen look like stdscr resetty() reset tty flags to stored value savetty() stored current tty flags scanw(fmt,arg1,arg2,...) scanf through stdscr scroll(win) scroll win one line scrollok(win,boolf) set scroll flag setterm(name) set term variables for name standend() end standout mode standout() start standout mode subwin(win,lines,cols,begin_y,begin_x) create a subwindow touchline(win,y,sx,ex) mark line y sx through sy as changed touchoverlap(win1,win2) mark overlap of win1 on win2 as changed touchwin(win) "change" all of win unctrl(ch) printable version of ch waddch(win,ch) add char to win waddstr(win,str) add string to win wclear(win) clear win wclrtobot(win) clear to bottom of win wclrtoeol(win) clear to end of line on win wdelch(win,c) delete char from win wdeleteln(win) delete line from win werase(win) erase win wgetch(win) get a char through win wgetstr(win,str) get a string through win winch(win) get char at current (y,x) in win winsch(win,c) insert char into win winsertln(win) insert line into win wmove(win,y,x) set current (y,x) co-ordinates on win wprintw(win,fmt,arg1,arg2,...) printf on win wrefresh(win) make screen look like win wscanw(win,fmt,arg1,arg2,...) scanf through win wstandend(win) end standout mode on win wstandout(win) start standout mode on win BUGS
4th Berkeley Distribution April 23, 1986 CURSES(3X)

Featured Tech Videos