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C Language Tutorial on Introduction to Pointers for Beginners Video Lecture | Basics of C Language - Fundamentals of Programming - Software Development
FAQs on C Language Tutorial on Introduction to Pointers for Beginners Video Lecture - Basics of C Language - Fundamentals of Programming - Software Development
| 1. What is a pointer in C language? |  |
Ans. A pointer in C is a variable that stores the memory address of another variable. It allows direct manipulation of memory and facilitates efficient memory management in C programming.
| 2. How to declare and initialize a pointer in C language? | |
Ans. To declare a pointer in C, you need to use the asterisk (*) symbol before the pointer variable name. For example, "int *ptr;". To initialize a pointer, you can assign it the address of another variable using the ampersand (&) operator. For example, "int *ptr = #".
| 3. How to access the value of a variable using a pointer in C? | |
Ans. To access the value of a variable using a pointer in C, you need to use the dereference operator (*) before the pointer variable name. For example, "printf("%d", *ptr);" will print the value of the variable pointed to by "ptr".
| 4. What is the difference between a pointer and a normal variable in C? | |
Ans. The main difference between a pointer and a normal variable in C is that a pointer stores the memory address of another variable, while a normal variable stores a value directly. Pointers allow for dynamic memory allocation and manipulation, whereas normal variables are static and have fixed values.
| 5. How can pointers be used for passing values to functions in C? | |
Ans. Pointers can be used to pass values to functions in C by passing the address of the variable as a pointer parameter. This allows the function to directly modify the value of the variable in the caller's scope. By using pointers, you can avoid making copies of large data structures, improving performance and memory efficiency.
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Dec 23, 2024 Last updated |
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