What is an lvalue?

Asked by Last Modified  

19 Answers

Learn C Language

Follow 0
Answer

Please enter your answer

Ranganath B

14yrs exp Math Computers Science English Hindi Teaching. Improvement In Scores Guaranteed Fee REFUND

L-value is short form for left side value. Similarly, r-value, means, right side value.
Comments
Dislike Bookmark

All subjects nursery to 10th

L-Value stands for left value L-Value of Expressions refer to a memory locations In any assignment statement L-Value of Expression must be a container(i.e. must have ability to hold the data) Variable is the only container in C programming thus L Value must be any Variable. L Value Cannot be Constant,Function...
read more
L-Value stands for left value L-Value of Expressions refer to a memory locations In any assignment statement L-Value of Expression must be a container(i.e. must have ability to hold the data) Variable is the only container in C programming thus L Value must be any Variable. L Value Cannot be Constant,Function or any of the available data type in C read less
Comments
Dislike Bookmark

Thanks for the question Nagasanthoshi, Lvalue is something that can stand on the left side of an assignment. In most of the cases it is the variable name where the value gets stored. Thanks, Team DishaaPro www.dishaapro.com
Comments
Dislike Bookmark

When first invented, in CPL, “lvalue” meant “left (of assignment) value”, and referred to expressions that the language allowed to appear on the left hand side of the assignment operator. In C, the concept was renamed as “locator value”, and referred to expressions that locate (designate) objects, because...
read more
When first invented, in CPL, “lvalue” meant “left (of assignment) value”, and referred to expressions that the language allowed to appear on the left hand side of the assignment operator. In C, the concept was renamed as “locator value”, and referred to expressions that locate (designate) objects, because C permits lvalues to appear in four contexts: left of assignment (except for arrays, const lvalues, and struct/union lvalues with at least one const member) left of dot (for struct/unions) right of address-of (except for register and bit field lvalues) as operand to pre/post increment/decrement (for integer lvalues, including bool and enums). read less
Comments
Dislike Bookmark

Computer maestro

lvalue refers to an object that exists beyond a single expression. Usually when an expression is evaluated it is done so with the help of stacks. The evaluated expression is then stored in a temporary location from which it is feed back to the control. This temporary location is the rvalue. Every constants...
read more
lvalue refers to an object that exists beyond a single expression. Usually when an expression is evaluated it is done so with the help of stacks. The evaluated expression is then stored in a temporary location from which it is feed back to the control. This temporary location is the rvalue. Every constants refers to an lvalue . for example: int x= 5+ 7; printf(" %d", x); here x is an lvalue. however if the expression would have been printf(" %d",(5+7)); it would have referred to as an rvalue read less
Comments
Dislike Bookmark

Tutor

In C lvalue is defined as left hand value of assignment operator. It can be a variable which can store value on the right of the assignment operato called lvalue. Rvalue can be some variable, constant or expression or function returning some value. Lvalue should be capable of storing the result of rvalue....
read more
In C lvalue is defined as left hand value of assignment operator. It can be a variable which can store value on the right of the assignment operato called lvalue. Rvalue can be some variable, constant or expression or function returning some value. Lvalue should be capable of storing the result of rvalue. Lvalue persists beyond an expression but rvalue is temporary. read less
Comments
Dislike Bookmark

The assignment is trying to change the value of an integer constant. Fortunately, C and C++ compilers reject it as an error. The basis for the rejection is that, although the assignment's left operand 3 is an expression, it's not an lvalue. It's an rvalue. It doesn't refer to an object; it just represents...
read more
The assignment is trying to change the value of an integer constant. Fortunately, C and C++ compilers reject it as an error. The basis for the rejection is that, although the assignment's left operand 3 is an expression, it's not an lvalue. It's an rvalue. It doesn't refer to an object; it just represents a value. read less
Comments
Dislike Bookmark

Simplest definition of lvalue typically means an expression which results into writeable memory. look at assignment statement a=b, left of = must be lvalue and right of = can be any.
Comments
Dislike Bookmark

later C language standards made it more complicated, but this is the simplest way to define, though not complete
Comments
Dislike Bookmark

Software Professional Trainer with 26+ years of Experience in Software Design and Development

Memory locations of a variable is called "l-value". An l-value represents that it can appear on the left of the equal sign (=).
Comments
Dislike Bookmark

View 17 more Answers

Related Questions

In C/C++, when should you use the comma (,) operator instead of the semicolon (;) statement terminator?
int a=2; b=a; b=a+2; Instead of the above two statements we can write it as b=(a,a+2); The value of b is 4
Thimma
0 0
5
What does %d mean in the C programming language?
signed decimal integer %d is not the only format specifier in C to represent integers. To be precise, %d is used to represent a signed decimal integer.
Vikas
0 0
6
Why is C still so popular?
C remains popular for several reasons, and its enduring popularity can be attributed to a combination of historical significance, efficiency, and versatility. Here are some key reasons why C is still widely...
A
0 0
6
How can you be sure that a program follows the ANSI C standard?
The ANSI C standard provides a predefined symbol named __STDC__ that is set to 1 when the compiler is enforcing strict ANSI standard conformance. If you want your programs to be 100 percent ANSI conformant,...
Vibha
Is C destined to die?
No not at all
Anubhav
0 0
5

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
C Program Sample Application
//Standard Library Functions(Header Files used) #include<stdio.h> #include <conio.h> //Main method int main() { // function for clearing screen clrscr(); // function to print the output...

Salim ahmed Ansari

0 0
0
4 Things Every Tech Startup Needs to Know About The Coaching Industry
Knowledge on any subject is widely available to those who wish to learn. However, just gathering knowledge from other people doesn’t guarantee results in business. Results come from applying what...

Rajesh N v

3 0
1
C PROGRAM FOR GENERATING SOUND
#include<stdio.h> #include<conio.h> #include<dos.h> void main() { sound(3000); // sound function have single parameter , this parameter we put integer value its generating...

V. Muthu Ganeshan

0 0
0
Memory Layout of C Programs
A typical memory representation of C program consists of following sections. Text Segment: A text segment, also known as a code segment or simply as text, is one of the sections of a program in an object...

Vijay Kumar

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 >

What is Applications Engineering all about?

Applications engineering is a hot trend in the current IT market.  An applications engineer is responsible for designing and application of technology products relating to various aspects of computing. To accomplish this, he/she has to work collaboratively with the company’s manufacturing, marketing, sales, and customer...

Read full article >

Why Should you Become an IT Consultant

Information technology consultancy or Information technology consulting is a specialized field in which one can set their focus on providing advisory services to business firms on finding ways to use innovations in information technology to further their business and meet the objectives of the business. Not only does...

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 Noida
C Language Classes in Gurgaon
C Language Classes in Ghaziabad

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