Why Isn't My `std::cout` Printing?

Determining Why std::cout Won't Output

When std::cout fails to print even constant strings, it can be puzzling. Addressing this issue involves understanding buffering and exploring methods to ascertain the stream's status.

Buffering in std::cout

By default, std::cout buffers outputs, meaning it collects data before sending it to the terminal. To ensure immediate printing, you need to flush the stream.

Checking Stream Status

To verify if std::cout can open the stream, avoid using member functions like good() or bad(). Instead, rely on std::flush to explicitly flush the buffered output.

Alternatively, you can use std::cout.flush() to perform the flush without outputting any characters. This allows you to check the stream's status without affecting the output.

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