Both r+ and w+ can read and write to a file. However, r+ doesn't delete the content of the file and doesn't create a new file if such file doesn't exist, whereas w+ deletes the content of the file …

May 1, 2013 · w+ will open the file for reading & writing, but if the file exists it will truncate the file (remove its contents). a+ will open the file for reading & writing, but while reading is allowed at …

The w+ mode will truncate (empty) the file. So if you want to change the contents rather than write a new file, use r+. Note that, as Tim Cooper noted, you cannot append in the middle of the file, …

Feb 1, 2020 · The mode are basically permissions, so r for read, w for write, a for append. You can also combine them, so rw would mean you could read and write to the file. There are more …

Feb 1, 2023 · For reading and writing to a text file, the functions fprintf() and fscanf() are used. They are the file versions of the printf() and scanf() functions. The only difference is that the …

Apr 30, 2025 · File handling in C is the process in which we create, open, read, write, and close operations on a file. C language provides different functions such as fopen(), fwrite(), fread(), …

During programming text file can be opened for different purposes i.e. reading, writing or both. This is specified by using file modes. Different text file modes in C programming are tabulated …

In the program below, we have created two FILE pointers and both are referring to the same file but in different modes. fprintf() function directly writes into the file, while fscanf() reads from the …

Let's suppose the file newprogram.txt doesn't exist in the location E:\cprogram. The first function creates a new file named newprogram.txt and opens it for writing as per the mode 'w'. The …

We can perform various operations on files, such as reading from a file, writing to a file, and closing a file. What is the difference between R+ and W+ in C? The ‘R+’ mode opens a file for …