Your learn how to close and open files and how to check if the filed was opened properly. You also learn how to simply put text into file.

You learn file opening modes (states) and differences between them. We learn how to open file and:

We discuss all stream's error flags and we show how to use them. You will know how to react on unexpected situations that happens during reading from the file like for example assigning string to integer or opening file for writing which had the flag set to only reading (ios::in)

You will know functions like:

1. fail
2. good
3. bad
4. eof
5. clear
6. rdstate

and you will know how to operate on states (failbit, goodbit, badbit, eofbit) using bitwise operators and rdstate function.

You will know how to read whole file using one loop and eof function.

What are and how to use reading position pointer. How to programitically check how many bytes the file has. You will learn and understand functions that reads and sets position of reading pointer.

You will know what is and how to use writing position pointer. You will learn functions seekp and tellp which allows you to retrieve and show where is the writing pointer.

You will learn:

1. how function getline and ignore works
2. how to retrieve all lines of text from file at once
3. how to ignore characters that are not needed
4. how to extract from file with names and surnames only initials

You will know how read function works. We are creating function that is counting size of file and function that is checking if two binary files are the same. We are training pointers on practical example. We also learn abot memcmp function which is used to compare memory.

You will learn hot to load characters from standard input (cin) and put them into the file. In addition to this you will learn how to add after each letter of string a space or any other character.

You will learn function that allows to peek characters before exracting and you will know how to retrieve information from steam in order to assign variables to the right type of variables.

You learn how to return extracted character back on the stream so it can be read again

You will learn how to save bytes to files and when you should use write function over saving operator (<<)

You will learn how to get count of characters retrieved from file on practical example.

Lesson where you gonna learn how to create mini database that allows you to:

- add people

- show added people

You gonna learn how to:

- save people to file

- load people from file

- search base by typing name

- remove person by id

I invite you to my other courses about programming and web development!