UrbanPro

Location Set your Location

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 a macro, and how do you use it?
✕

Search in

What is a macro, and how do you use it?

Asked by Last Modified  

16 Answers

Learn C Language

Follow 1
Answer

Please enter your answer

Professional Tutor with 15 years of experience.

A macro is a fragment of code which has been given a name. Whenever the name is used, it is replaced by the contents of the macro. There are two kinds of macros. They differ mostly in what they look like when they are used. Object-like macros resemble data objects when used, function-like macros resemble...
read more
A macro is a fragment of code which has been given a name. Whenever the name is used, it is replaced by the contents of the macro. There are two kinds of macros. They differ mostly in what they look like when they are used. Object-like macros resemble data objects when used, function-like macros resemble function calls. read less
Comments
Dislike Bookmark

Macro is a preprocessor directive we can give any name to any thing it doesn't give any errors compailer replace that names preprocessor stage only
Comments
Dislike Bookmark

website and mobile application development training, digital marketing training

A macro is a name given to a block of C statements as a preprocessor directive. Being a pre-processor, the block of code is communicated to the compiler before entering into the actual coding (main () function). A macro is defined with the preprocessor directive, #define.
Comments
Dislike Bookmark

Macros are generally used to define constant values that are being used repeatedly in program. Macros can even accept arguments and such macros are known as function-like macros. It can be useful if tokens are concatenated into code to simplify some complex declarations. Macros provide text replacement...
read more
Macros are generally used to define constant values that are being used repeatedly in program. Macros can even accept arguments and such macros are known as function-like macros. It can be useful if tokens are concatenated into code to simplify some complex declarations. Macros provide text replacement functionality at pre-processing time. Here is an example of a simple macro : #define MAX_SIZE 10 The above macro (MAX_SIZE) has a value of 10. Here is a simple program #include #define MAX_SIZE 10 int main(void) { int size = 0; size = size + MAX_SIZE; printf("%d",size); return 0; } read less
Comments
Dislike Bookmark

Professional Trainer:: Hadoop Big Data, DevOps, Perl, Python

macro is single line code block, e.g. #define area(r) (3.1415*(r)*(r)) where ever you refer to the macro area(r), it will be replace with the actual code block defined in macro radius=10; area=area(radius); so in the above code the macro is replaced with the actual code area=(3.1415*(radi...
read more
macro is single line code block, e.g. #define area(r) (3.1415*(r)*(r)) where ever you refer to the macro area(r), it will be replace with the actual code block defined in macro radius=10; area=area(radius); so in the above code the macro is replaced with the actual code area=(3.1415*(radius)*(radius)) read less
Comments
Dislike Bookmark

Tutor of programming language and tutor of I-V and VI-VII

A macro is a name given to a block of C statements as a pre-processor directive. Being a pre-processor, the block of code is communicated to the compiler before entering into the actual coding (main () function). A macro is defined with the preprocessor directive, #define. Before compilation, the name...
read more
A macro is a name given to a block of C statements as a pre-processor directive. Being a pre-processor, the block of code is communicated to the compiler before entering into the actual coding (main () function). A macro is defined with the preprocessor directive, #define. Before compilation, the name of macro is replaced by the defined macro body. The speed of the execution of the program is the major advantage of using a macro. Disadvantage: The size of the program is large. Example: #include"stdio.h" #define X 100 void main() { printf("%d",X); } read less
Comments
Dislike Bookmark

International Corporate Trainer For dotnet Core ,Angular 2 ,C ,C++ and LPT Marathi for RBI Banking

Macro in C is also called symbolic constant , it replaces the code part. ex:#define line "\n..................\n", ex: #define Square(x) (x)*(x), this is called function macro it will work as Square(5) = 25 but it is not type safe user may enter alphabet instead of number and progam will fail. better...
read more
Macro in C is also called symbolic constant , it replaces the code part. ex:#define line "\n..................\n", ex: #define Square(x) (x)*(x), this is called function macro it will work as Square(5) = 25 but it is not type safe user may enter alphabet instead of number and progam will fail. better way is to use user defined function read less
Comments
Dislike Bookmark

printf ("File Name = %s.\n",__FILE__);
Comments
Dislike Bookmark

Oracle, Hindi, C++, C, MS Office, VBScript,JavaScript,Spoken English etc with 29 years of experience

Macros automate frequently-used tasks; many are created with VBA and are written by software developers. However, some macros pose a potential security risk.
Comments
Dislike Bookmark

IT Professional Trainer with 13 years of experience in IT industry + Academics

It is preprocessor directive which is being included prior to compilation process of a program.
Comments
Dislike Bookmark

View 14 more Answers

Related Questions

What is a calling function in C?
A calling function is a way to execute a block of code that's defined elsewhere in your program. It's like asking a specialized worker to perform a specific task within your main project. It promotes code organization, reusability, and modularity.
Deepika
0 0
6
Is a default case necessary in a switch statement?
NO, default is optional and you can omit it if there is no use of it.
My
Can you write a c program declaring a variable named “num” and assigning the value 100 to this variable and also displaying that “The value is 100”?
int main() { int num=100; printf("The value is %d",num); }
Pratheema
0 0
5
Where is C used today?
C programming language is still widely used today in various domains. Here are some areas where C remains prevalent: System Programming: C is extensively used for developing operating systems and...
S
0 0
5
Is it necessary for a programmer to start his career by learning the C language first?
no, but c is the basic if u have good analysing skills need to learn if u learn c , you can easy to get the c++ else u have put some effort on this session f c++
Shilpa

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

Ask a Question

Related Lessons

Advantages of C++ Language
Advantages of C++ - C++ is a profoundly convenient dialect and is frequently the dialect of decision for multi-gadget, multi-stage application advancement. - C++ is a protest situated programming dialect...

Bright Computer Education

2 0
0
C Program-Error Handling
//Header files #include<stdio.h>#include<conio.h>#include<stdlib.h> //Main function void main(){ int dividend=10; int divisor=0; int quotient; //Function for clearing screen clrscr(); ...

Salim Ahmed Ansari

0 0
0
Dynamic Memory Allocation in C using malloc()
#include <stdio.h>#include <conio.h>//#include <malloc.h> OR#include <stdlib.h>void main(){ int *ptr, i, n, sum = 0; printf("how many elements ? "); scanf("%d", &n);...

Sankhadeep Pujaru

0 0
0
Is It Fine To Write “void main()” Or “main()” In C/C++?
The definition: void main() { /* ... */ } Is not and never has been C++, nor has it even been C. See the ISO C++ standard 3.6.1 or the ISO C standard 5.1.2.2.1. A conforming...

Sunil Yadav

1 0
2
Some Tricky Questions in C
Can you write two functions in which one executes before main function and other executes after the main function? #pragma startup #pragma exit Where, priority is optional integer value.For user priority...

Sahana D.

1 0
0

Recommended Articles

Lasya Infotech: An educational Training...

Lasya Infotech is a Hyderabad based IT training institute founded in 2016 by O Venkat. Believing in his innovation, passion and persistence and with a diverse blend of experience, he started his brainchild to deliver exemplary professional courses to aspiring candidates by honing their skills. Ever since the institute envisions...

Read full article >

Brilliant Academy, a reputed B. Tech Tuition...

Brilliant Academy is one of the reputed institutes for B.Tech tuition classes. This institute is specialised in delivering quality tuition classes for B.E, Engineering - all streams and Engineering diploma courses. Incorporated in 2012, Brillant Academy is a brainchild of Mr Jagadeesh. The main motto of the academy is to...

Read full article >

8 Hottest IT Careers of 2014!

Whether it was the Internet Era of 90s or the Big Data Era of today, Information Technology (IT) has given birth to several lucrative career options for many. Though there will not be a “significant" increase in demand for IT professionals in 2014 as compared to 2013, a “steady” demand for IT professionals is rest assured...

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 >

Find C Language Classes near you
C Language Classes in Bangalore
C Language Classes in Hyderabad
C Language Classes in Delhi
C Language Classes in Pune
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 © 2010-2024All Rights Reserved