C++20 sections · 1024 units
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Section Recap

What we learned

You now read and write files in C++.

1.1. ifstream reads files, ofstream writes files

2.2. Check is_open() before using file streams

3.3. Use getline() for line-by-line reading

4.4. RAII ensures files close automatically

Good job. Your programs can now save and load data. Next, you will learn exception handling for solid error recovery.