Reset a File with ios::trunc

Write a function void resetFile(const string& filename) that opens filename with an fstream in ios::out | ios::trunc mode and writes the single line reset (followed by a newline) to it.

The test fills the file with several old lines first, calls your function, then prints every line of the file (see Expected Output).

Do NOT write a main function.

Expected Output:

reset↵
reset↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Streamsfstream

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