increasing variable
February 23, 2000 07:08 PM
This may seem a pretty basic question but how could you detect if a variable was increasing/descreasing? Its not
if (variable++) is it?
Thanx,
ViPeR
122
February 23, 2000 07:25 PM
The easiest way I can think of would be to have another variable which is initilised with the origonal value of the other variable and compare their values periodically.
eg.
if (num1 != num2)
{
/* do whatever
}
eg.
if (num1 != num2)
{
/* do whatever
}
122
February 23, 2000 10:18 PM
variables don''t just increase and decrease on their own. You have to do that for them, so the logical thing would be to have a variable that represents it''s last value
old_y = y;
y++;
or to have a variable that represents it''s change
dy = -5;
y += dy;
old_y = y;
y++;
or to have a variable that represents it''s change
dy = -5;
y += dy;
122
February 24, 2000 10:31 AM
quote: Original post by Jim_Ross
...
old_y = y;
y++;
...
Unless I am very mixed up you could also do this as:
old_y = y++;
Because the postfix operator was used, the origional value of y is returned with y being incremented. This is one feature of C++ I love, so I thought I would point it out
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You are not a real programmer until you end all your sentences with semicolons; (c) 2000 ROAD Programming
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You are not a real programmer until you end all your sentences with semicolons; (c) 2000 ROAD Programming
You are unique. Just like everybody else.
"Mechanical engineers design weapons; civil engineers design targets."
"Sensitivity is adjustable, so you can set it to detect elephants and other small creatures." -- Product Description for a vibration sensor
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