WEBVTT

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So or at the end of this section we'll be doing some more applications of pointers and references and

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feature sections.

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But we just do something a bit easier for this section.

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So we only have one problem and it says it right function that will swap the two values of two integers

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so we could do this with either references or pointers.

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So do this with references.

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So let's write a function and call that swap and you have two integers as are references.

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In a in parameters so this will be our function declaration.

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You know I have swap like this and just right.

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The main function.

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So X equals do you 5.

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TWI const.

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Dean and call swap

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x y here.

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In C out it's

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set value.

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X is

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in in

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y ints.

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I like this.

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So you're right now nothing will change right.

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So the value of x is 5 and the value of x is a value of x is 5 and value wise D.

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So by the end of this it should be the opposite.

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So we do that using these references.

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OK so if we how how would you swap two values.

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Between each other.

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So going to need a temporary variable.

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Let's call it Stemp.

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This and we actually set it to let's say x K and so got the value of x ray these references.

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And once set x to be y y this case.

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Now Vout X gets the value of Y and if we want there to complete it we just say that.

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Y equals to 10.

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Right.

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So we just set the value X to attempt to store it for later use because we're going to change X and

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then the very next line so X now becomes 15.

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Here are.

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And then Y gets the value of temp which was 5.

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In this case.

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OK.

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So let's run this

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so value of x is 15 in value of y is 5 k.

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So again we're using references.

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Swap the values

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so we could be doing this with pointers.

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But I think I'll leave that up to you on how to do that properly.

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And in the next section we're going to talk about arrays.