For the method of refreshing the terminal output line, refer to: https://github.com/ninja-build/ninja/blob/0cd88287a4cd77d11c92c7a9b44bb15fb787a1ee/src/line_printer.cc#L66

line_print_refresh.h

#include <iostream>

#define REFRESH_OUTPUT_LINE(token)          \
  std::cout << "\r";                        \
  std::cout << #token << " => " << (token); \
  std::cout << "\x1b[K";                    \
  std::cout.flush();