From the course: C Standard Library
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File access example
- [Instructor] Now let's see an application that reads from a file and writes into the same file. I will use Get C to read each character from the file and I will use F Print F to write something into the file. And what I want to do is to print out the exact file to the screen, so what I will do is read each character from the file and send it out to the screen. And later, I will report in the file how many characters I found. That's why you can see an integer variable called Counter in line four. So, let's get started. So first let me declare a file variable, which will actually be a pointer called f and I will assign a new file to it by means of the f open function. Now remember, this function takes in two strings. The first one is the file name and I will name this file names.txt I already have a file with a bunch of names available for this. And the second argument is the access mode. For this example, I will use r+ which means reading access with added writing access. Now let me…
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