What is macro functions in c language?

Asked by Last Modified  

8 Answers

Follow 0
Answer

Please enter your answer

Sandip Mukherjee

Friend Philosopher and E Guide for MCA, class IX-X, Polytechnic Diploma, BCA, BSc, BTech

Is used to define function in c like #define f(x,y)=x+y
Comments
Dislike Bookmark

Engineering Teacher

Macro function is specifically used for defining special constants Example #define PI 3.14
Comments
Dislike Bookmark

Its a preprocessed functions. They take valid c identifiers as aruguments , same as normal functions.
Comments
Dislike Bookmark

IT Professional

Macros can also accept parameters and return values. Macros that do so are called macro functions. To create a macro function, simply define a macro with a parameter that has whatever name you like, such as my_val. For example, one macro defined in the standard libraries is abs, which returns the absolute...
read more
Macros can also accept parameters and return values. Macros that do so are called macro functions. To create a macro function, simply define a macro with a parameter that has whatever name you like, such as my_val. For example, one macro defined in the standard libraries is abs, which returns the absolute value of its parameter. Let us define our own version, ABS, below. #define ABS(my_val) ((my_val) < 0) ? -(my_val) : (my_val) read less
Comments
Dislike Bookmark

Best teaching for all the subjectd

Function is a set of instruction .macro functions means a small function the entire c program is divided into small partitions each part is call as a macro. each marci has its own set of instructions. when ever you define macros in header by #define macro the value of macro is automatically get used...
read more
Function is a set of instruction .macro functions means a small function the entire c program is divided into small partitions each part is call as a macro. each marci has its own set of instructions. when ever you define macros in header by #define macro the value of macro is automatically get used in ur program Ex. If u want to find 2pir value just u need r variable and it's value. Why beacsuse already pi value is evaluated in pi macrofunctions So just u need to define at header file then were ever pi comes it automatically takes 3.14 as pi value Like this we can create sapate macro functions and we have to save those functions in macro directory. Then I should define and use the value of functions read less
Comments
Dislike Bookmark

My English World

C language is related to computers not to English
Comments
Dislike Bookmark

An Experienced Professional

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. Though macro and functions sound similar but macro is a preprocessed and functions...
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. Though macro and functions sound similar but macro is a preprocessed and functions are compiled. Before compilation macro name is replaced by macro value but during function call , transfer of control takes place. read less
Comments
Dislike Bookmark

Mathematics tutor

Macros can also accept parameters and return values. Macros that do so are called macro functions. To create a macro function, simply define a macro with a parameter that has whatever name you like, such as my_val. For example, one macro defined in the standard libraries is abs, which returns the absolute...
read more
Macros can also accept parameters and return values. Macros that do so are called macro functions. To create a macro function, simply define a macro with a parameter that has whatever name you like, such as my_val. For example, one macro defined in the standard libraries is abs, which returns the absolute value of its parameter. Let us define our own version, ABS, below. (Note that we are defining it in upper case not only to avoid conflicting with abs, but also because all macros should be defined in upper case, in the GNU coding style. See Style.) Macros can also accept parameters and return values. Macros that do so are called macro functions. To create a macro function, simply define a macro with a parameter that has whatever name you like, such as my_val. For example, one macro defined in the standard libraries is abs, which returns the absolute value of its parameter. Let us define our own version, ABS, below. (Note that we are defining it in upper case not only to avoid conflicting with abs, but also because all macros should be defined in upper case, in the GNU coding style. See Style.) read less
Comments
Dislike Bookmark

View 6 more Answers

Related Questions

How many days I want learn English?
Approx 6 to 12 months only if your basics are clear.
Sushma
Is it important to join coaching in class 11?
• If you are an average student (getting 55-75% marks) or below average you need help from tuition !! • if you have chosen different streams other than SCIENCE like Arts , Commerce and you...
Gulfam
0 0
9
Is it necessary to go to coaching or tuition for English in class 12 CBSE?
I think those students who are studying in a CBSE schools.They won't need.
Brahma
0 0
6
Can I start IIT coaching in class 12?
You should've started from class 11 itself, but it is better late than never. So please join for coaching asap
Divya
0 0
8
Should I join coaching in class 12 for the JEE? I haven't joined any coaching in class 11.
If you're serious about JEE, you should join a coaching institute. There are thousands of students out there studying from morning to late night and it's a hard nut to crack without proper coaching
Neeraj
0 0
8

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

Ask a Question

Related Lessons

CBSE Class12 math's chapter 3 matrices example 4 & 5
S

Shoba

0 0
0
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
Phototrophic Bacteria
Phototrophic bacteria are species that use inorganic compounds as thier source of electrons (i.e. photolithotrophs). For example, Chromatium okenii uses H2S as its electron donor, oxidizing it to elemental...
N

Nisha S.

1 0
0
Chemistry Diagonal Relationship
What is diagonal relationship in the periodic table? Discuss with reference to lithium, magnesium, beryllium and aluminium? A diagonal relationship is said to exist between certain pairs of diagonally...

Nidhi T.

0 0
0
5-Study Tips every student needs to follow to get results
Tip-1 of Study Tips:Trying to do all tasks together First and foremost thing to do for being more productive is to prioritize our tasks. When you're clear about your priorities, you never try to do all...

Dio Tutorial Point

0 0
0

Recommended Articles

6 Exam Hall Tips To Follow, For Every Good Student

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

Science, Arts Or Commerce - Which One To Go For?

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

The Rising Problems in Indian Government School

With the mushrooming of international and private schools, it may seem that the education system of India is healthy. In reality, only 29% of children are sent to the private schools, while the remaining head for government or state funded education. So, to check the reality of Indian education system it is better to look...

Read full article >

Top Benefits of e-Learning

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

Find BSc Tuition near you
BSc Tuition in Bangalore
BSc Tuition in Delhi
BSc Tuition in Hyderabad
BSc Tuition in Chennai
BSc Tuition in Kolkata
BSc Tuition in Mumbai
BSc Tuition in Pune
BSc Tuition in Noida
BSc Tuition in Chandigarh
BSc Tuition in Jaipur

Looking for BSc Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you