wepik-mastering-file-handling-in-c-programming-20240526185725jRzI.ppt

file handling

1. File Handling in
C Programming

2. Introduction
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• Welcome to the world of File Handling
in C programming. This presentation will
guide you through the essential
techniques for working with files,
including reading, writing, and
managing files in C.

3. Opening Files
Learn the process of opening files in
C. This involves using the fopen()
function to access files in different
modes such as read, write, and
append.

4. Open a File in C For opening a file in C, the fopen() function is used with the filename or file
path along with the required access modes.
Syntax of fopen()
FILE* fopen(const char *file_name, const char *access_mode);
Parameters :
file_name: name of the file when present in the same directory as the source file. Otherwise, full
path. access_mode: Specifies for what operation the file is being opened.
Return Value :
If the file is opened successfully, returns a file pointer to it. If the file is not opened, then returns
NULL.
File opening modes in C :
File opening modes or access modes specify the allowed operations on the file to be opened.
They are passed as an argument to the fopen() function. Some of the commonly used file access
modes are listed below:

12. File Pointers
Understanding file pointers is crucial
for file handling. They are used to
navigate through files and are essential
for performing operations such as
reading and writing to files.

13. Reading from Files
Master the art of roodEroi from fiJos
in
o
C. Use functions like fscanf () and fgets
() to extract data from files and
process it within your program.

16. Writing to Files
Explore the process of writing to fiCes in
C. Utilize functions like fprintf () and
fputs () to store data and information into
files for future use.

18. File Positioning
Understand the concept of file positioning
in C. Use functions like f seek () and rewind
() to navigate within files and manipulate
the file pointer's position.

20. Closing Files
Learn the importance of dosing files in C.
Properly closing files using the f close ()
function is crucial for releasing resources
and preventing memory leaks.

21. Error Handling
Discover the significance of error
handling in file operations. Utilize
techniques such as checking for
NULL returns and using perror()
to handle potential errors
effectively.

22. Conclusion
Congratulations! You have now mastered the
essentials of File Handling in C programming.
Apply these techniques to efficiently work with
files and elevate your programming skills.

23. Thanks!
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