How can a program be made to print the line number where an error occurs?

Asked by Last Modified  

7 Answers

Learn C Language

Follow 0
Answer

Please enter your answer

Computer & Maths Professor

The ANSI C standard includes a predefined macro named __LINE__ that can be used to insert the current source code line number in your program. This can be a very valuable macro when it comes to debugging your program and checking for logic errors.
Comments
Dislike Bookmark

Computer Wizard

int print_document(char* doc_name, int destination) { switch (destination) { case TO_FILE: print_to_file(doc_name); break; case TO_SCREEN: print_preview(doc_name); break; case TO_PRINTER: ...
read more
int print_document(char* doc_name, int destination) { switch (destination) { case TO_FILE: print_to_file(doc_name); break; case TO_SCREEN: print_preview(doc_name); break; case TO_PRINTER: print_to_printer(doc_name); break; default: printf("Logic error on line number %d!\n", __LINE__); exit(1); } } read less
Comments
Dislike Bookmark

Use printf("Line#: %d", __LINE__);
Comments
Dislike Bookmark

Computer Science

The ANSI C standard includes a predefined macro named __LINE__ that can be used to insert the current source code line number in your program. This can be a very valuable macro when it comes to debugging your program and checking for logic errors.
Comments
Dislike Bookmark

Computer Guru

__LINE__ - Inserts the current source code line number in your code.
Comments
Dislike Bookmark

To print the line number we can use "__LINE__" Example: printf (stderr, "error at File: %s , Line: %d)", __FILE__, __LINE__);
Comments
Dislike Bookmark

Teacher 4 You

use _LINE_
Comments
Dislike Bookmark

View 5 more Answers

Related Questions

What is C language used for?
C language is a versatile programming language commonly used for system programming, developing operating systems, embedded systems, and creating various applications ranging from game development to scientific...
Anil
0 0
5
How to enable or disable USB using C program?
Already given answer kindy see in my back command.
Arindom M.
What is the structure of a C program?
A basic structure of a C program typically consists of: 1. **Preprocessor Directives:** These are lines of code that begin with a `#` symbol. They are instructions to the compiler to include certain...
Snehal
0 0
5
How do you print an address?
int main(){ int a=5; printf("Address of variable a is: %d",&a); return 0; }
Prakash
2 0
6
What is a stream?
Transferring data from one location to another location...
Nilam

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

Ask a Question

Related Lessons

Creating First Program Using C Language
Step 1: Install and setup Turbo C compiler on your computer. Step 2: Open Turbo C from your Desktop or Programs menu. Select “File” from menu bar and select option “New”. Step...

Dipti S.

0 0
0
Datatypes in C Language
Data types in C Language Data types specify how we enter data into our programs and what type of data we enter. C language has some predefined set of data types to handle various kinds of data that...

Venkateswararao S.

0 0
0
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
Compiler vs Interpreter
Compiler Interpreter Convert all the code into binary format and execute. Convert one statement at a time and execute, then Convert next statement and execute. After conversion, source...

Umasankar Natarajan

0 0
0
Why C is a Language and not a database?
When I interviewed a candidate, I raised this question many times, but I have not got the answer correctly. To under why C is a language and not a database, it is good to understand why our communication...

Vihanga EmbedSoft

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 >

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 >

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 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