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How can Can I copy the contents of one variable into another???
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Hi...
I am a bit new to programming, and I'm trying to learn C++. I was wondering if there was a way to copy the contents of one variable into another... So that, for example:
The reason is that if I use variable assingment or pointers, and x changes, then so will y... If you please, list a code or method in order to achieve this data transfer
Thank you,
I am a bit new to programming, and I'm trying to learn C++. I was wondering if there was a way to copy the contents of one variable into another... So that, for example:
int x=5; int y; (Some fancy code here involving x and y); (y=5 but it is not related at all to x. If x is assigned a value of 10438478234 later in the code, y will still equal 5)
The reason is that if I use variable assingment or pointers, and x changes, then so will y... If you please, list a code or method in order to achieve this data transfer
Thank you, 
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int *y = &x; If x changes, then will *y •
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Posting Whiz in Training
If you want 2 variables to refer to the same data, you can also use references:
output:
5,5
10,10
15,15
CPP Syntax (Toggle Plain Text)
5,5
10,10
15,15
Ok...
output:
c Syntax (Toggle Plain Text)
C++ Syntax (Toggle Plain Text)
It does work like that?? But what about the "x=y" part, followed by "x=10"???? Doesn't that say "x has same value as y, and x is now 10" Doesn't that mean that y will also be 10?? (Please excuse my noobish questions, I'm just staring with this thing!!!)
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Posting Whiz in Training
You sound like a mathematician, not a programmer.
In programming, x = 5 means set x to 5. y = x means set x to the value of y (the old value of x is discarded).
In programming, x = 5 means set x to 5. y = x means set x to the value of y (the old value of x is discarded).
er...
look at it this way
when there is a = sign remember that it is an assignment operator not an "equal" sign
anything on the left is assigned to what is on the right
Looks like you read it wrong.
the only variable assignment he made was y = x
cheers
look at it this way
when there is a = sign remember that it is an assignment operator not an "equal" sign
anything on the left is assigned to what is on the right
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But what about the "x=y" part, followed by "x=10"???? Doesn't that say "x has same value as y, and x is now 10" Doesn't that mean that y will also be 10??
the only variable assignment he made was y = x
cheers
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Posting Whiz in Training
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Originally Posted by dougy83 
You sound like a mathematician, not a programmer.
In programming, x = 5 means set x to 5. y = x means set x to the value of y (the old value of x is discarded).
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