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 a pragma?
✕

Search in

What is a pragma?

Asked by Last Modified  

52 Answers

Learn C Language

Follow 3
Answer

Please enter your answer

Professional Tutor with 15 years of experience.

In computer programming, a directive pragma is a language construct that specifies how a compiler should process its input. The ' #pragma ' directive is the method specified by the C standard for providing additional information to the compiler, beyond what is conveyed in the language itself. Three...
read more
In computer programming, a directive pragma is a language construct that specifies how a compiler should process its input. The ' #pragma ' directive is the method specified by the C standard for providing additional information to the compiler, beyond what is conveyed in the language itself. Three forms of this directive (commonly known as pragmas ) read less
Comments
Dislike Bookmark

Matlab and comsol solution with 10 years of experience

The ‘#pragma’ directive is the method specified by the C standard for providing additional information to the compiler,
Comments
Dislike Bookmark

Microsoft Technology Consultant

it is one of the PreProcessor directives. Say for example" #pragma warn -rch " this statement suppress the unreachable code warning. Also we have startup, exit ,.....etc.,
Comments
Dislike Bookmark

LearnHowToLearn, Expert In Programming Languages

Pragma is one of preprocessor directive to define program related options. Pragma is used to set structure memory packing options. Or setting entry point of program instead of main function.
Comments
Dislike Bookmark

Computer Programming Languages

This is a preprocessor directive that can be used to turn on or off certain features. It is of two types #pragma startup, #pragma exit and pragma warn. pragma startup allows us to specify functions called upon program startup. pragma exit allows us to specify functions called upon program exit. pragma...
read more
This is a preprocessor directive that can be used to turn on or off certain features. It is of two types #pragma startup, #pragma exit and pragma warn. pragma startup allows us to specify functions called upon program startup. pragma exit allows us to specify functions called upon program exit. pragma warn tells the computer to suppress any warning or not. many other #pragma style that can use to control compiler read less
Comments
Dislike Bookmark

COMPUTER GEEK

The ‘#pragma’ directive is the method specified by the C standard for providing additional information to the compiler, beyond what is conveyed in the language itself. Three forms of this directive (commonly known as pragmas) are specified by the 1999 C standard. A C compiler is free to attach any meaning...
read more
The ‘#pragma’ directive is the method specified by the C standard for providing additional information to the compiler, beyond what is conveyed in the language itself. Three forms of this directive (commonly known as pragmas) are specified by the 1999 C standard. A C compiler is free to attach any meaning it likes to other pragmas. Its syntax is _Pragma (string-literal), where string-literal can be either a normal or wide-character string literal. It is destringized, by replacing all ‘\\’ with a single ‘\’ and all ‘\"’ with a ‘"’. The result is then processed as if it had appeared as the right hand side of a ‘#pragma’ directive. For example, _Pragma ("GCC dependency \"parse.y\"") has the same effect as #pragma GCC dependency "parse.y". The same effect could be achieved using macros, for example #define DO_PRAGMA(x) _Pragma (#x) DO_PRAGMA (GCC dependency "parse.y") read less
Comments
Dislike Bookmark

Enthusiastic Learner and Teacher

Pragmatic is a very complex pre processor directive as it depends on the platform/hardware. It is used to indicate the minimum memory size to be used for any data type to increase the speed of data access. We know that a character is of size one byte but when you declare #pragma 4 , every character will...
read more
Pragmatic is a very complex pre processor directive as it depends on the platform/hardware. It is used to indicate the minimum memory size to be used for any data type to increase the speed of data access. We know that a character is of size one byte but when you declare #pragma 4 , every character will occupy 4 bytes of memory, this will speed up your system because if you're writing code for 32 bit cpu, which indicates that it's data bus size is 32 bits meaning it can fetch 4 bytes of data in one cpu cycle then it would be efficient to declare variable of size which is multiple of 4. There's another cover you need to know odd address and even address. Let me know in comments if you want me to explain that. read less
Comments
Dislike Bookmark

#pragma preprocessor directive allows each compiler to implement compiler-specific features that can be turned on and off with the #pragma statement. For instance, your compiler might support a feature called loop optimization. This feature can be invoked as a command-line option or as a #pragma directive....
read more
#pragma preprocessor directive allows each compiler to implement compiler-specific features that can be turned on and off with the #pragma statement. For instance, your compiler might support a feature called loop optimization. This feature can be invoked as a command-line option or as a #pragma directive. To implement this option using the #pragma directive, you would put the following line into your code: #pragma loop_opt(on) Conversely, you can turn off loop optimization by inserting the following line into your code: #pragma loop_opt(off) read less
Comments
Dislike Bookmark

Software Engineer

In computer programming, a directive pragma (from "pragmatic") is a language construct that specifies how a compiler (or assembler or interpreter) should process its input.
Comments
Dislike Bookmark

Science Expert, C & C++ Strong

The pragma directive is used to access compiler-specific preprocessor extensions. A common use of #pragma is the #pragma once directive, which asks the compiler to include a header file only a single time, no matter how many times it has been imported: #pragma once // header file code
Comments
Dislike Bookmark

View 50 more Answers

Related Questions

What is the use of header files in C language?
Header files in C serve as a way to declare the structure and prototypes of functions that will be used in a program. They provide information about the functions, constants, and data types used in a program,...
Kamal
0 0
6
What are the main characteristics of c programming?
C programming is known for several key characteristics that contribute to its popularity and versatility. First and foremost, C is a procedural programming language, meaning it follows a top-down approach...
Balendra
0 0
6
Why C language is still available in market, while so many & much easier languages are available ?
Now, I agree that you can use OOP in C to some extent, but it's sort of painful and inelegant (well at least compared to C++ I guess). So, what makes C so popular? Is it efficiency; being low-level; the...
Pankaj
Who created C?
C programming language was created by Dennis Ritchie at Bell Labs in the early 1970s. Along with Ken Thompson, Ritchie developed C as an evolution of the B programming language, aiming to provide a more...
Srinivasan
0 0
8
What is important topics in C-language for interviews???
Functions, Arrays , String, pointers , structures
Gayu

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

Ask a Question

Related Lessons

Functions In C Programming
A C-language program is nothing but collection of Function, these are the building blocks of a ‘C’ program. Generally, a function mans a task. “Function is a...

M Chandra Rao

0 0
0
Pointers Concept
Every variable has a memory location and every memory location has its address defined which can be accessed using ampersand (&) operator, which denotes an address in memory. Consider the following...

Sudarshan Gupta

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
Static and dynamic libraries
A library is a package of code that is meant to be reused by many programs. A static library (also known as an archive) consists of routines that are compiled and linked directly into your program. When...

Vijay Kumar

1 0
0
C INTRODUCTION

Nagaraju Tanguturi

0 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 >

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 >

Make a Career as a BPO Professional

Business Process outsourcing (BPO) services can be considered as a kind of outsourcing which involves subletting of specific functions associated with any business to a third party service provider. BPO is usually administered as a cost-saving procedure for functions which an organization needs but does not rely upon to...

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 Chennai
C Language Classes in Mumbai
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