一个非常好的做法是在循环缓冲器中维护最近几条消息的历史记录，当错误情况出现时，可以转储循环缓冲器。
One method that works very well is to maintain a history of the last few messages in a circular buffer that can then be dumped when an error condition occurs.
在那种情况下，即使您在一个自动测试系统中运行您的净化程序，当一个错误发生时，它将额外的消息转储到Purify日志中，那将帮助您鉴定这个问题。
In that case, even if you run your purified program through an automated test suite; when an error occurs, it will dump extra messages into the Purify log that will help you identify the problem.
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