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Hello and welcome to the golden programming language course in the television station, we talked about

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competing pointers and Googling and indecision, and we want to talk about the other's point first concept.

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Go pointer to point to or domino pointer, the pointer is especially bad either, so it can point to

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a variable of any time even to a pointer.

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Basically, this looks like a chain of pointers when we define the pointer to pointer, then the first

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pointer is used to restore the actress of the second pointer.

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This concept is sometimes termed as double pointers.

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Hard to declare a pointer to pointer and go land the pointer to a pointer is a form of chain of pointers.

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Normally, a pointer contains the address of a very.

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Then we define a pointer to a coin to the first pointer contains the address of the second pointer.

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Each points to the location that contains the actual value, as shown below.

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A very bad that is a pointer to a pointer must be declared as such.

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This is done by placing an additional asterisk in front of its name.

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For example, the following statement declares a pointer to a pointer of type int.

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That Peter, three, Asterix, each time when the target value is indirectly pointed to by a pointer

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to a pointer, accessing that value requires that the asterisk operator be applied twice.

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Now, go to this good program to illustrate the concept of pointer to pointer.

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First, taking a variable of integer type that.

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Peaks and equals 100.

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Now, taking a pointer of the time that.

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P.

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T one Asterix E equals actress of East Valley, the Anderson he's

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now taking pointer to pointer to Pete Yvonne is touring the actress of Pizjuan into PETA to vie Pete

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to asterisk, asterisk and equals actress of Pointer Rock Anderson.

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Petey won't now display EEGs and Petey and PETA variables if IFBB.

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The value of X equals said the value of the Ace go to the next line.

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Fifty.

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The dragging you off.

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He t one equals set point to a long.

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And go to the next line.

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If we.

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The value.

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Home to two equals and set the value a pointer to.

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Reformat the quote.

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Now referencing the pointer to pointer.

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Yes, he.

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Value at the address.

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Of pointer to or has to expand to two equals, that's two pointer to and double pointer bequeathed the

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value of variable X if P

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value.

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At the at risk.

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Point to two or.

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Asterisk, asterisk, p t two equals

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six, that's p t.

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To reformat the code, save the project and execute the program.

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Now we can see the output first, we see the value of the variable X, which is a hundredth.

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Then we see the value of the variable points or one in which the address of the variable X is a thought.

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And then we see the value of the variable point or two in which the address of the variable point to

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one is distort.

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And now you see the address of the variable pointer two.

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And finally, we see the value of the variable points or two, which is preceded by two asterisks.

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We have reached the end of decision.

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I hope you have taken full advantage of this station onto next session.

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Goodbye.