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Next part of the story.

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So one more theoretical portion, the values which we lost, two functions are called arguments.

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So here again, see on the previous slide.

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See, here I have Indiana in B.

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These are all arguments and arguments are of two types.

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Let's see what is next.

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So there are two types of arguments, actually, and for me, let's jump back good clean with our program

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to see water actually arguments and what that formal arguments.

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So if you look into our program here, I have just given my arguments like my first number is number

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one and my first second number is number two, and I have botched this to that addition function.

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So this is Carl and Boston that children use to the function.

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So these arguments are actual are going so number one and number two, I can't actual arguments and

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we have formal arguments also here.

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Number one and number two are coming all here and it's now it's name is changed to Hannity right now.

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One is store two.

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Yeah.

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And number two is still to be.

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So now you can be archived formal arguments in the court for many arguments.

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I think it makes sense to you why they have got it, because they saw the arguments which you are passing

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to the function and these are the copy of that particular arguments.

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No, another important topic, which we have s car by rally and car by reference.

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So here we have three types of ways which we again face value to function.

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One is by value.

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Second is buys bad press and third is buys Bank of Finance.

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So what is the difference between two, so supposing by sending out the value, then the copy of the

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values passed with that function?

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But if I'm basing the value we on convey that our friends make the list, we will check how it will

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actually work.

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So don't worry about that.

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So if I'm posting evaluate their function, better friends or leader, I presume the function that value

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spots to that function whenever there is a change in value in that function inside that function.

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It is not reflected in that value because it's scarred by value.

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But in this reference, all the changes made inside that function to that value will be reflected.

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I would say the function then actual and formal arguments will be created in different memory location.

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That is the main example of the car value.

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And in case of car funds, actual and formal arguments will be rendered in same memory location, which

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means they will be working on the same mediums.

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So let's go to the next slide.

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This I have already explained global and local variables.

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So I have a variable in the program is not being say that function in that program.

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That variable is global variable.

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That variable can be accessed anywhere in the program.

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But if it variable variables created or declared inserted functionally, then that variable is called

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now variable, and that meaning will lie inside that function only after the function is ending.

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That variable will we believe that that concept I have already explained you in that beginning.

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So before moving on to Structure Park, let's move on to that covered by the forensics summary.

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We have.

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So here, let's take the first program car by value, this is that sadly be value, it's somebody here.

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We have actual arguments and for formal arguments.

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But what we're doing here, here we have number one and number two, but we are creating a copy of number

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one and number two and giving it that into the final shape.

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And that new copies resort called the.

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So number one and number two, not equal to anything because both are different memory locations.

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I'll be again in the Senate.

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So if I'm trying to print the value off and be after the statement here right away and I just need to

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make some adjustments to do this.

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So here I am declaring the function, I'm right up to that function and I'm trying to see out.

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A and B.

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I'm saving this.

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Let's see if this works.

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OK, so first off, what I am comparing the program.

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Plus comment.

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There is an error because it is not defined or undeclared, identified because it cannot understand

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because there is inside this function and be orally inside this function.

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Why does the function is entered here than we used last?

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So that's why we get our code and the order here.

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It's not even compiling, it's throwing it out because it cannot recognize any.

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If I am trying to come under the command and run this program again, then it will actually work fine.

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Let's see that.

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Yes.

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Oh, I did.

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And.

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OK, function definition is not away.

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OK, so we need to move down here.

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OK.

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So anyway, we will not be able to.

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No, we will not get another.

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Let's see.

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No, it's executing this fine.

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So anyway, here's what happened to there was number one and a different medium was only now more bad

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news for $3 here.

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And if I'm trying to change the value of this number one and I'm two, it will actually from here,

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it will not work.

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I don't like to change the value of I'm one and two from here because it's two different mediums and

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no one is not saying if I'm making the value of it something and I'm trying to pull out number one,

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it will not be saved because the end will not be fair.

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So to understand this more properly, I will explain to you, call by reference.

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So here again, see, our program goes back to values.

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Ideally, we should have it covered by value program and also, yeah, here we have a car by value program.

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So here I am, trying to stop doing how must have been.

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I must know what I do and I'm trying to slap the number between.

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So what?

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No start ask.

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No one should be number two and what the starting number one should be.

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Number two.

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OK, so then value and number two should be coming in, say no and no one should be coming in sick.

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Number two, yeah, I'm actually using car by value method, so I'm asking for the first number.

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Second number, then I'm calling this app function.

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WhatsApp function do it will accept you now.

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Must now want to do it, Williams said.

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There are no number three and it will first dial one of the numbers inside three.

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Then it will snap the other two numbers.

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That is a strapping.

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So what will actually happen?

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See, we can run this program and see what that is the best thing to do.

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So G Plus Plus card by value dark CBB.

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Yes.

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Then darts lashing out.

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And that of us, no doubt.

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And then the second number 15.

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So inside and outside function before shopping, the value number one restaurant and number two was

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15.

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Inside function app after dropping the value when it get inside the function, it becomes 15 and 12

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right by outside the function.

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It can come back again.

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I would say the function we are again printing number one and number two, what seat number one and

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number two are saying?

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Because the value which was here this morning and this number two are entirely different than new number

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one or number two because like outside in the previous zombies, we are only sending that copy off number

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one and number two.

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And this is an entirely new number one item to restore the call piece.

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OK.

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And this gobies are actually changing out here by this number and this number, you are not changing.

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That's why we are getting that same manual together.

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So suppose we are sending the car by a reference method, sending the values through common reference

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method, then we are not sending the values they are sending.

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There are tests.

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So let's see what happens there.

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So we have got about our friends.

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So, you know, so, yeah, statics and stowaway strap strapping or go static stories die.

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So that is stark.

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And here again, to see and see you again, see a sequel to 500.

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And while may nice wrapping, then I'm sending our prospects and our debts off way to that final mission,

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I have declared.

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So what happens inside the function?

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It will actually get done, get us off, extend right and start means the value inside that suffix straightaway

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means the value in say that off right now.

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What do we do after getting that value?

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In that particular memory, we have a strapping next Saturday.

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Values are exact locations in specific, not two different copies.

141
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That means this X and Y, and this X and Y are sadly us like acting on it.

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Same.

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Variable, I know you have some kind of confusion.

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So let's see this program in action.

145
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So again, C++ scarred by Rough Dog CPB.

146
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Now I'm going to head out out.

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Radyo face is heartland and values raised by see he had expressed by Hendrick and why he was under.

148
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So what happens if I'm printing it from here?

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Here it's inside the function.

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What happens if I'm printing?

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See out?

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Stop.

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Star Trek's.

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Star right now, I'm trying to.

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Ricky, the program.

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And I'm going to execute the program again.

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So it's fine, but I'm fine.

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Here again, I'll underline if I see that just because here the value changed and often even after exiting

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from this foundation, the value is also changed because this X and this right was the same.

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Variable, that's because you have that reference, not that you.