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How you can delete the data in the file when you open the file in read or write mode in C programming?
When you open a file in write mode, eg. fp=fopen("filename.txt","w"); the content of the file is deleted.
What are the different modes in C programming language?
In C programming language, there are three main modes: text mode, binary mode, and append mode. Text mode is used for reading and writing text files, binary mode is used for reading and writing binary files, and append mode is used for appending data to the end of a file.
What is a statement used to open data file in c plus plus?
FILE* fopen(<filename>, <mode>); E.g., FILE* f = fopen("C:\\Users\\<user_name>\\My Documents\\data_file.dat", "rb"); Opens the specified file for reading ("r") in binary mode ("b").
What action takes place when you save a file opened in an application program?
C
What is definition of file handling in c plus plus?
File is a place where information or data is stored. we make use of some of the file-handling functions in c like: fopen()-for opening a file. fclose()-to close a file. Every file being opened for any operations like: "r"- Read-Only mode. "w"-Write-only mode. "a"-append mode. "r+"-read+write mode. "w+"-write+read mode. "a+"-read+append mode. We should make use of FILE pointer ,in order to perform any such operations on the files. There are many input and output functions used along with files. fgetc() fgets() fscanf() fputc() fprintf() fputs() fseek() rewind() File handling is used to read or write a file without directly opening it.its contents are opened in another files by using above specified commands in c++ programming for file handling we have to use a header file but in c noheader file regarding to file handling is required
How you can delete the data in the file by opening it in the C programming in read or write mode?
To delete all the existing data in a file, simply open it in write mode. If you open the file in append mode, you need to overwrite the existing data to delete part or all of that data.
How do you pipe the results of dir to a file?
Assuming you are in command prompt mode, the following will redirect the output of the c:\windows to the file c:\win.txt dir c:\win\*.* > c:\win.txt for %a in (C:\Windows\*) do @echo %a for %a in (C:\Windows\*) do @echo %a >> C:\win.txt
What is step involve is using data file in c plus plus programming?
Declaration of file pointer opening of file in desired mode. performing the desired operation. closing the file
What are the different modes available in C programming language and how can they be utilized effectively in a program?
In C programming language, the different modes available are text mode and binary mode. Text mode is used for reading and writing text files, while binary mode is used for reading and writing binary files. These modes can be utilized effectively in a program by choosing the appropriate mode based on the type of file being accessed. Text mode is useful for handling human-readable text files, while binary mode is more suitable for non-text files like images or executable programs. By selecting the right mode, programmers can ensure that data is read and written correctly according to the file's format.
What is file mode and list various file mode operations available?
A file mode describes how a file is to be used, to read, to write to append etc. When you associate a stream with a file, either by initializing a file stream object with a file name or by using open() method, you can provide a second argument specifying the file mode. e.g. stream_object.open("filename",filemode); Following is the list of filemodes available in C++ ios::in ios::out ios::binary ios::ate ios::app ios::trunc ios::nocreate ios::noreplace
How do you use fopen in c plus plus?
#include <stdio.h> ... FILE *f = fopen ("name", "mode");
How do you empty a file using C programming?
That depends on the type of file and what you mean by "empty". Generally, fopen() called on an existing file, with the "w" option instead of the "a" option will truncate the file to zero length. To delete a file completely is a different process. Function truncate is your friend.
