What is the differece between #define and constant in C?

Interview Questions

Our Services

Get 9,000 Interview Questions & Answers in an eBook.

9500+ Pages
9000 Question & Answers
All Tech. Categories

14 MB Content

Get it now !!

INTERVIEW QUESTIONS LANGUAGES C DETAILS

Question :
What is the differece between #define and constant in C?

Category C Interview Questions

Rating (0.0) By 0 users

Added on 7/18/2006

Views 1123

Rate it!

Answers:

A const identifier allows a variable to be constant throughout the file in which it's declared....

Whereas a #define is a macro which replaces the macro-name with a user-defined text statement.....

Also,a macro can be deleted,if we wish,using #undef whereas a const variable once defined can't be done so....

If you have the better answer, then send it to us. We will display your answer after the approval.

Name :*

Email Id :*

Answer :*

Verification Code Not readable? Load New Code

Enter the above shown code:*

Inform me about updated answers to this question

Related Questions View Answer

How can we open a image file through C program

View Answer

In c , main() is a function . and where is defined main() in c. bcz every function has three parts.
1>. decleration
2>. definition.
3>. calling

View Answer

What is wrong with the following c program?
char *s1 = "hello";
char *s2 = "world";
char *s3 = strcat(s1, s2);

Please provide me explanations??

View Answer

Between a long pointer and a char pointer , which one consumes more memory? explain

View Answer

What does it mean-

a[i]=i+i

View Answer

How to break cycle in circular single link list?

View Answer

How to improve my c knowledge........

View Answer

How do you write a program which produces its own source code as its output?

View Answer

How to write a C program to find the power of 2 in a normal way and in single step?

View Answer

I want C program code for : Reverse the links of a linked list by traversing only once

Input:
The input consists of the information in each node of the linked list.

Output:
The program displays the information in the linked list after the links are reversed.

Sample Input:
Enter the information in the linked list (Enter -1 to exit): 10
20
30
40
50
-1

Sample Output:
After the links are reversed
Information in the linked list:
50
40
30
20
10

View Answer

Please Note: We keep on updating better answers to this site. Subscribe to our newsletter to get notified when better answer is posted.

Notify me when better answer is posted!

Email:

View ALL C Interview Questions