Intro to C Programming - File I/O

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Intro to C Programming - File I/O
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Loved your style of teaching, laid-back and in-depth descriptions.

subedi
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I used this to create a file that erases itself

gbadspcps
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Great lecture thank you!! Super helpful

branmuller
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How do you replace the "input.txt" into a user input?
For
FILE * f_ptr = fopen("input.txt", "r"); //I would like to change the "input.txt" into a variable because I want the user to enter the file name.


//I tried this:
const char* fileName; //which contains a user input

FILE * f_ptr = fopen(fileName, "r"); //it doesn't work

emgm
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Thank you very much for your awesome videos, Dr. Miller. I was wondering if there were any books or online materials that would help me understand how each of the implementation of these functions at its lower levels. I am trying to self learn computer science, programming and engineering as I am very interested in this field and I am often hitting walls with the material I am reading (computer architexture and computer science books).

Prashc
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