How to read a .gz file line-by-line in C++?

Question

I have 3 terabyte .gz file and want to read its uncompressed content line-by-line in a C++ program. As the file is quite huge, I want to avoid loading it completely in memor

Answer 1

You can't do that, because *.gz doesn't have "lines".

If compressed data has newlines, you'll have to decompress it. You don't have to decompress all data at once, you know, you can do it in chunks, and send strings back to main program when you encounter newline characters. *.gz can be decompressed using zlib.