Join Peggy Fisher for an in-depth discussion in this video Pointers, part of Up and Running with C++.
…Every piece of data can be found, using an…address to the location, where it is stored in memory.…A pointer is a dated type in C++, that contains the address of a value in memory.…Pointers can be used to share values among different parts of a program.…Here in my example, I'm defining an integer variable, John's…account, and giving it the value 1, 2, 3 ,4 ,5.…Right below that, I'm declaring a pointer.…Notice the asterisk after the data type, that tells the computer this is a pointer,…i have int* acctPtr, for account pointer, is equal to, &JohnsAcct.…
Remember the ampersand finds the address where…John's account, is actually store in memory.…I now have that value in my pointer.…In lines 15 and 16, I'm printing out…John's account, number using the variable, Johns account,…also, I'm printing out the value of where…that is located in memory, using my pointer.…Below that, I'm actually using the account pointer, to print out the value.…The way that you print out a value, using a pointer, is you dereference the pointer.…
- Downloading and exploring the C++ IDE
- Working with loops
- Using predefined functions
- Creating custom functions
- Creating and instantiating classes
- Working with external files
Skill Level Beginner
1. Getting Started
2. C++ Basics
3. Flow of Control
4. Classes and Objects
5. Data Structures
6. File Manipulation
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