What is dynamic memory allocation?

C Programming Language > Dynamic Memory Allocation > Introduction to DMA

Long Question

706

Answer:

In case of dynamic memory allocation, memory is allocated at runtime and memory can be increased while executing the program. It is used in the linked list.
The malloc() or calloc() function is required to allocate the memory at the runtime.
An allocation or deallocation of memory is done at the execution time of a program.
No dynamic pointers are required to access the memory.
The dynamic memory is implemented using data segments.
Less memory space is required to store the variable.


For example  
int *p= malloc(sizeof(int)*10);

The above example allocates the memory at runtime.

Go to Question List

This Particular section is dedicated to Question & Answer only. If you want learn more about C Programming Language. Then you can visit below links to get more depth on this subject.

C Syllabus

C Tutorial

C Chapterwise Programs

C Chapterwise MCQs

C Chapterwise Q & A

C Free Videos

# C Tutorials # JAVA Tutorials # HTML Tutorials # Computer Fundamental # Data Structure # DBMS Tutorials SQL # C# Language # R Language # PHP # Python # Vue JS

Join Our telegram group to ask Questions

Click below button to join our groups.

Ask Question - CSE

Programming Language - PDF

Related Program List

739. What functions are used for dynamic memory allocation in C language?

# Tutorial: Introduction to DMA

Question: Dynamic Memory Allocation Long

740. What is the difference between malloc() and calloc()?

# Tutorial: calloc() and free()

Question: Dynamic Memory Allocation Long

741. What is the structure?

# Tutorial: Structure in C

Question: Structure in C Language Long

742. What is a union?

# Tutorial: Union in C

Question: Union in C Language Long

743. What is an auto keyword in C?

Answer:

In C, every local variable of a function is known as an automatic (auto) variable. Variables which are declared inside the function block are known as a local variable. The local variables are also known as an auto variable. It is optional to use an auto keyword before the data type of a variable. If no value is stored in the local variable, then it consists of a garbage value.

# Tutorial: static Variable in C

Question: Variable in C Language Short

744. What is the purpose of sprintf() function?

# Tutorial: File Operation in c

Question: File Input/Output Long

745. Can we compile a program without main() function?

Answer:

Yes, we can compile, but it can't be executed.

But, if we use #define, we can compile and run a C program without using the main() function. For example:


#include<stdio.h>    
#define start main    
void start() {    
   printf("Hello");    
}

# Tutorial: Basic Structure of C Programming

Question: Overview of C Language Short

746. What is a token?

# Tutorial: Tokens in C

Question: Overview of C Language Long

747. What is command line argument?

Answer:

The argument passed to the main() function while executing the program is known as command line argument. For example:


main(int count, char *args[]){  
//code to  be executed  
}

# Tutorial: Important points about C

Question: Fundamentals of C Language Short

748. What is the acronym for ANSI?

Answer: The ANSI stands for " American National Standard Institute." It is an organization that maintains the broad range of disciplines including photographic film, computer languages, data encoding, mechanical parts, safety and more.

# Tutorial: Important points about C

Question: Fundamentals of C Language Short

Chapterwise Java Program
Chapterwise C Program
Chapterwise Data Structure Program