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

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

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

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

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

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

Python Trainer

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

I am a java developer and i have 10year experience in training of information technology

malloc() is a allocate the memory space ,reallocate the memory space using calloc
Comments
Dislike Bookmark

View 59 more Answers

Related Questions

What is the difference between class and structure?
Basic difference between class and structure is that Structures are used to store data and a class defined both data and the functions that access that data.
Aparna
0 0
8
Is C#, C++, Python, or JS better for game development?
All languages good for gamjng. But you can make 3d games in c# uaing unity software and it's very very interesting to work on it.
Mohit
0 0
6
what is method over-riding and how it is used ? if possible send with code with output or screen photo ?
Method over-riding : it is a technique in which more then one function with same name and same signature( similar type parameter) can present in program. in overriding a subclass method overrides the definition...
Sayyad
0 0
5
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
Which language is best, C, C++, Python or Java?
If you want to learn any languages C#, Java, ect. then must to learn C, C++ language as these are base or language to be strong in language skills. C++ is improved version of C language. C#, Java, J# and etc. which are improved version of C++.
Sribaghya
0 0
6

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

Ask a Question

Related Lessons

Why Indexing Should Start From Zero In Array ?
Why numbering should start at zero? To denote the subsequence of natural numbers 2, 3, ..., 12 without the pernicious three dots, fourconventions are open to usa) 2 ≤ i < 13b) 1 < i ≤ 12c)...

Sunil Yadav

0 0
0
Polymorphism In C++
Basically polymorphism represents poly means many and morph means forms that many forms. In which we are passing same message to different objets but every object will work for that message in their own...

Ajit Deshmukh

0 0
0
Do You Know How Is Size Of Structure Defined?
Size of the structure is defined based on multiplies of bigger data type member in the structure. Example: If a structure contains integer, char, short data type, then size of the Structure will be multiples...

Umasankar Natarajan

0 0
0
C Programming Language Basics - Easy way to learn
Computer - OverviewTodays world is an information-rich world and it has become a necessity for everyone to know about computers. A computer is an electronic data processing device, which accepts and stores...

B.V.V Satyanarayana Rao

0 0
0
Importance Of Function Prototype In C
Function prototype tells compiler about number of parameters function takes, data-types of parameters and return type of function. By using this information, compiler cross checks function parameters and...

Sunil Yadav

1 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 © 2010-2025 All Rights Reserved