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Signs we are covering the use of variables.

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It's worth explaining the syntax used to define pointers and the race because there are some potential

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pitfalls.

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So working with the memory arrays and pointers covers in the in next lectures in more detail.

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So we will just introduce the syntax so that you are familiar with it.

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So in C++ you will access memory use a typed point.

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So the type indicates the type of the data that's held in the memory that is pointed to.

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So if the pointer is an four byte integer pointer, it will point to four bytes that can be used as

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an integer.

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If the integer pointer is incremented, then it will point to the next four bytes, which can be used

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as an integer.

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So in C++, pointers are declared using the asterisk here.

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Asterisk.

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So using this asterisk symbol and you access a memory others with this and opera.

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So let's create a pointer.

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P here integer E, 52 and P equals and operator and the symbol here.

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And so now I want to explain uncomment these lines.

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So you can when you download these codes, you got the understanding of what these lines means.

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So the first line declares a variable P, which will be used will be used to hold the memory address

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of an integer.

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So the next one here.

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The second line declares an integer, declare squares and an integer and signs value.

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As you remember, this is just an usual, usual thing that how we declare the integer values here.

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Nothing strange here but new here for for us.

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Here and here.

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As you can see, we used the end operator.

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So this and the third line.

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The signs of value assigns a value.

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Assigns a value.

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So this assigns a value to the pointer P here.

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To be the address.

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Of the integer.

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Valuable.

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So it's important to stress that the value of P is not 52.

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If the memory others where the value of 52 is stored.

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So not how the declaration has the asterisk here on the variable name.

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This is the common convention that the reason is that if you declare several variables on in one statement,

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the asterisk here applies only to the immediate variables.

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So for example, let's create an integer integer P one, p2p3 here.

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So as you can see here, this is the example of this is a common convention.

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The reason is that if you declare several variables in one statements, this asterisk applies only to

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the media immediate variable.

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And let's create another example of the declaring pointer types here.

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So this looks like you're declaring here as you as you can see this make here integer, this will look

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like you are declaring two integer pointers.

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However, this line does not do this here.

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Integer P one.

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An integer feature.

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Actually, we did app1 integer SW one.

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Integer as to.

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Here.

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So.

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As you can see here.

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This line does not do this.

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So we have three pointers here.

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Point two types here.

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And this line does not do as does this, because the second variable is an integer called P called S

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two, and it declares just one pointer called called S one integer pointer here.

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And if you wish to declare the two integers in one statement, then you should do as follows.

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Here p one and or.

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One and.

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To to.

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So this is the correct one if you want if you want to declare two pointers to 2.8 types here.