UrbanPro
Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Learn C++ Language from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

C++ Language > Learn C++ Language > What is different between malloc and calloc?
✕

Search in

What is different between malloc and calloc?

Asked by Last Modified  

61 Answers

Learn C++ Language

Follow 0
Answer

Please enter your answer

MS SQL SERVER DBA Trainer

The Diffrences are like-- malloc() takes a single argument (memory required in bytes), while calloc() needs two arguments. Secondly, malloc() does not initialize the memory allocated, while calloc() initializes the allocated memory to ZERO. calloc() allocates a memory area, the length will be the product...
read more
The Diffrences are like-- malloc() takes a single argument (memory required in bytes), while calloc() needs two arguments. Secondly, malloc() does not initialize the memory allocated, while calloc() initializes the allocated memory to ZERO. calloc() allocates a memory area, the length will be the product of its parameters. read less
Comments
Dislike Bookmark

Python Trainer

malloc() doesn’t initialize the allocated memory. calloc() allocates the memory and also initializes the allocates memory to zero.
Comments
Dislike Bookmark

Tutor

first of all Both functions are used to allocate memory dynamically and they return the address of the first byte DIFFERENCES 1. first difference is between the syntax of malloc and calloc function malloc takes one argument malloc(n*sizeof(data type) where as calloc takes two argument calloc(n,sizeof(data...
read more
first of all Both functions are used to allocate memory dynamically and they return the address of the first byte DIFFERENCES 1. first difference is between the syntax of malloc and calloc function malloc takes one argument malloc(n*sizeof(data type) where as calloc takes two argument calloc(n,sizeof(data type) 2. malloc does not initializes allocated memory i.e allocated memory contains garbage value where as calloc initializes allocated memory location by zero read less
Comments
Dislike Bookmark

Trainer

calloc - allocates a region of memory large enough to hold "n elements" of "size" bytes each. Also initializes contents of memory to zeroes. malloc - allocates "size" bytes of memory. and never initialise memory. so there may be garbage collection there in memory
Comments
Dislike Bookmark

Trainer

Malloc is Used to allocate a contiguous block of memory in bytes. whereas Calloc is used to allocate multiple blocks of contiguous memory in bytes. All the blocks are of same size.
Comments
Dislike Bookmark

Get Computer Science Class

Malloc allocates single memory piece but calloc allocates memory piece with specified denomination
Comments
Dislike Bookmark

B.E (Computer Science & Engineering) 78%; MS (Computer Science) (USA) (GPA: 3.8/4.0)

Malloc allocates memory as a single block. It takes only one argument, which is the size of the block to be allocated in terms of bytes. Also it does not initialize the memory. On the other hand, calloc allocates memory in terms of multiple blocks and takes two arguments, the number of blocks to be...
read more
Malloc allocates memory as a single block. It takes only one argument, which is the size of the block to be allocated in terms of bytes. Also it does not initialize the memory. On the other hand, calloc allocates memory in terms of multiple blocks and takes two arguments, the number of blocks to be allocated and the size of each block in bytes. It initializes the memory contents to 0. read less
Comments
Dislike Bookmark

Computer Science Tutor

Both malloc() and calloc() are used in Dynamic memory allocation but the difference between them is - malloc() does not initialize the memory allocated but calloc() initializes the allocated memory to zero.
Comments
Dislike Bookmark

Computer wizard

1. malloc(...) allocates memory blocks and returns a void pointer to the allocated space, or NULL if there is insufficient memory available. calloc(...) allocates an array in memory with elements initialized to 0 and returns a pointer to the allocated space. calloc(...) calls malloc(...) in order...
read more
1. malloc(...) allocates memory blocks and returns a void pointer to the allocated space, or NULL if there is insufficient memory available. calloc(...) allocates an array in memory with elements initialized to 0 and returns a pointer to the allocated space. calloc(...) calls malloc(...) in order to use the C++ _set_new_mode function to set the new handler mode. 2.calloc(...) allocates a block of memory for an array of elements of a certain size. By default the block is initialized to 0. The total number of memory allocated will be (number_of_elements * size). malloc(...) takes in only a single argument which is the memory required in bytes. malloc(...) allocated bytes of memory and not blocks of memory like calloc(...). read less
Comments
Dislike Bookmark

Technology Trainer(C, C++, Java , DS , DBMS etc)

In calloc allocated memory region is initialized with zero whereas in malloc with garbage values
Comments
Dislike Bookmark

View 59 more Answers

Related Questions

Is C++ is next version of C?
This feature looks pretty sweet. This would be great because you wouldn't need getters any more. You could make member variables public; later, if you change your mind, you can turn them into property.
Subham
i am a student of 11th class and i want to make my future in C++ is this possible i am take arts inn 11th class
Definitely.. but you should be flexible moving to java/ other languages as well.. requirement/ demand keep changing in software. i can do the needful.. with 18+ yrs exp in working on live projects...
Rajneesh
Are C Programmers currently in demand?
Ofcourse, C is alwasy in demand. In the beginning a lot of the big project developed in C language. Now a days, there are a lot of language in market and speciallity is growing in IT field. For a big organization...
Harsha
What is a class?
Class is User defined data type, its contain data members and member function
Thinagaran
0 0
7
What is the actual size of INT in the C language, 2 or 4 bytes?
The actual size to int is determined by the compiler as the program runs. But theoretically the size is 2 bytes. You can increase the size by adding keyword long infront of it to make the size 4 bytes. Eg int a; // 2 bytes Long int b; // 4 bytes
Kunal

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Swapping Two Numbers
Q. Swap two numbers using the following function. Complete the function. You won't be allowed to use a temporary variable to swap the two numbers. void swap ( ... ) { /* Swap code goes here */ } ...

Pooja R.

0 0
0
Working with C/C++ applications
Inorder to learn C and C++ programming languages one can work with various editors available.To name a few are the most popular one is turbo c++, DEV C++, Eclipse, NetBeans. Here are the screen shots...
S

Salim Ahmed Ansari

0 0
0
Difference Of Inheritance In C++ And Java
In Java , multiple inheritance is not applicable directly but we can implement the concept by using the interfaces. In c++ and Java, the common types of inheritances are: Single Multi level Hybrid Hierarchical

Saurabh Saxena

1 0
0
Variables and Storage Classes
Variables and Storage Classes auto default variable type local to a function static retains the values between function calls initialized only once unavailable outside the scope of the function...

Darpan Kumar

1 0
0
What Would Be Life Cycle Of A Fresher After Campus In An IT Company?
1. Basic Technical Training: Since freshers are not subject matter experts so gone through 3 - 6 months basic technical training within Organization. 2. Technical Assessment: HR sends freshers to various...

Amit K.

0 0
0

Recommended Articles

About C++ Programming Language

Introduction C++ is an excellent programming language and many of the applications are written in C++ language. It has generic, object-oriented & imperative programming features, and also provides facilities for low-level memory manipulation. Successor of C language, it is an OOP (object oriented programming) language...

Read full article >

Learn Hadoop and Big Data

Hadoop is a framework which has been developed for organizing and analysing big chunks of data for a business. Suppose you have a file larger than your system’s storage capacity and you can’t store it. Hadoop helps in storing bigger files than what could be stored on one particular server. You can therefore store very,...

Read full article >

Make a Career in Mobile Application Programming

Almost all of us, inside the pocket, bag or on the table have a mobile phone, out of which 90% of us have a smartphone. The technology is advancing rapidly. When it comes to mobile phones, people today want much more than just making phone calls and playing games on the go. People now want instant access to all their business...

Read full article >

Learn Microsoft Excel

Microsoft Excel is an electronic spreadsheet tool which is commonly used for financial and statistical data processing. It has been developed by Microsoft and forms a major component of the widely used Microsoft Office. From individual users to the top IT companies, Excel is used worldwide. Excel is one of the most important...

Read full article >

Find C++ Language Classes near you
C++ Language Classes in Bangalore
C++ Language Classes in Delhi
C++ Language Classes in Pune
C++ Language Classes in Hyderabad
C++ Language Classes in Mumbai
C++ Language Classes in Chennai
C++ Language Classes in Kolkata
C++ Language Classes in Ahmedabad
C++ Language Classes in Noida
C++ Language Classes in Jaipur

Looking for C++ Language Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for C++ Language Classes?

The best tutors for C++ Language Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Learn C++ Language with the Best Tutors

The best Tutors for C++ Language Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2025All Rights Reserved