But how could you re-open the same file? It was a quiz in my previous interview two years ago by a Waterloo guy. I don't have the answer right now. Hope someone has the smart idea. People may be asked the same question in their interviews.
请教大家一个技术问题, UNIX系统下, 如何写一个C程序, 能够在异常中断后程序重启时自动恢复文件读写指针(即接着上次中断的断点接着读写).