09-19-2012
Quote:
Originally Posted by
pamu
NR is always the same.. so (!NR%60) doesn't work here...
Now, what does that mean (NR being always same)? That might not work only because
! has a higher precedence than
%. So the expression
!NR%60 is evaluated as follows:
1) Negate the value of
NR. This will always will false (0).
2) Evaluate
0%60 which will always return a 0.
So, that expression will always be false. That does not mean NR is the same always. Right?
The correct conditional expression should be
!(NR%60).
This User Gave Thanks to elixir_sinari For This Post:
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LEARN ABOUT OPENSOLARIS
scroll
curs_scroll(3CURSES) Curses Library Functions curs_scroll(3CURSES)
NAME
curs_scroll, scroll, scrl, wscrl - scroll a curses window
SYNOPSIS
cc [ flag ... ] file ... -lcurses [ library ... ]
#include <curses.h>
int scroll(WINDOW *win);
int scrl(int n);
int wscrl(WINDOW *win, int n);
DESCRIPTION
With the scroll() routine, the window is scrolled up one line. This involves moving the lines in the window data structure. As an optimiza-
tion, if the scrolling region of the window is the entire screen, the physical screen is scrolled at the same time.
With the scrl() and wscrl() routines, for positive n scroll the window up n lines (line i+n becomes i); otherwise scroll the window down n
lines. This involves moving the lines in the window character image structure. The current cursor position is not changed.
For these functions to work, scrolling must be enabled via scrollok().
RETURN VALUES
All routines return the integer ERR upon failure and an integer value other than ERR upon successful completion.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |Unsafe |
+-----------------------------+-----------------------------+
SEE ALSO
curs_outopts(3CURSES), curses(3CURSES), attributes(5)
NOTES
The header <curses.h> automatically includes the headers <stdio.h> and <unctrl.h>.
Note that scrl() and scroll() may be macros.
SunOS 5.11 31 Dec 1996 curs_scroll(3CURSES)