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

when will you start for delivering lectures on C language
You can approach, I will teach in depth, make you profession c developer
Surbhi
Is C#, C++, Python, or JS better for game development?
All languages good for gamjng. But you can make 3d games in c# uaing unity software and it's very very interesting to work on it.
Mohit
0 0
View Comments6
How do I learn C programming easily?
Just follow kanitkar book of c programming for beginners
Harsh
0 0
View Comments5
What are the types of linkages in C Programming?
Type of linkage Type of object Accessibility external external throughout the program internal external a single file none internal local to a single function
Akash
0 0
View Comments9
Is C programming necessary to learn to become a software engineer?
C language is starting language for programming, if you will understand the concept of C language then it would be very easy to learn all programming language because somehow concepts are similar
Ujwalajagdale
0 0
View Comments7

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

Ask a Question

Related Lessons

Java and C trainer
Always think any conspect with real-time example like Object -- object must have states and behaviour then only we will call that thing is Object like fan is Object (rotating,color)

Jadav Avinash

0 0
View Comments0
Learn to code from an Engineer || Linear search || Python

Syed Chintu

0 0
View Comments0
C Programming basics
C PROGRAMMING BASICS 10 Hours Introduction to ‘ C’ programming –fundamentals – structure of a ‘C’...
O

Om K.

0 0
View Comments0
Recursion in C Programming
The process of calling a function by itself is called recursion and the function which calls itself is called recursive function. Syntax of Recursive Function returntype recursive_func () { statements; ...
R

Ravindra Yadav

2 0
View Comments0
Basic Concepts of Web Designing
An introduction to domain names, web servers, and website hosting 1)What is the web? In a nutshell, the web is a whole bunch of interconnected computers talking to one another. The computers (on the...

Dev Group

2 0
View Comments0

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 Mumbai
C Language Classes in Chennai
C Language Classes in Kolkata
C Language Classes in Ghaziabad
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