Starting Out with C++: Early Objects (9th Edition)
9th Edition
ISBN: 9780134400242
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: PEARSON
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Chapter 10, Problem 34RQE
Program Plan Intro
Pointer:
Pointer, the name itself references the purpose of the pointer. Pointers point to a location in memory.
- Pointer is a special type of variable to store the address of the memory location, which can be accessed later.
- If an asterisk “*” operator is present before the variable, then that variable is referred as pointer variable.
- It is also called as dereferencing or indirection operator.
- Pointer is just a type of variable that stores the addresses of other variables.
- Using pointers, we can access the address of a variable; the data stored in that variable can be retrieved.
Syntax of pointer variable declaration:
<variable-type> *<variable-name>;
Example for pointer variable declaration:
//definition of pointer variable
int *ptrvar;
Where,
- “int” is the variable type.
- “* ptrvar” is the pointer variable name.
Pointer will allow the user to indirectly access and manipulate the data contents of the variable. A pointer variable will hold the address of the data contents.
Note:
- When the symbol “&” is placed prior the pointer variable, it will hold address of the pointer variable.
- When the symbol “*” is placed prior the pointer variable, it will hold the value of the pointer variable.
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Chapter 10 Solutions
Starting Out with C++: Early Objects (9th Edition)
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