Seeing backwards in time
نویسندگان
چکیده
منابع مشابه
Debugging Backwards in Time
By recording every state change in the run of a program, it is possible to present the programmer every bit of information that might be desired. Essentially, it becomes possible to debug the program by going “backwards in time,” vastly simplifying the process of debugging. An implementation of this idea, the “Omniscient Debugger,” is used to demonstrate its viability and has been used successf...
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In circumstances when a variable in a program has an incorrect value the process of debugging it is often a process about discovering the history of that variable, or rather the ancestry of the value that it contains. In this paper we propose a new technique for debugging that revolves around being able to trace back through the history of a particular variable or variables that it depends upon...
متن کاملBackwards Analysis
Consider the following scheme to solve the sorting problem: given n numbers to be sorted, after the ith of n (1 ≤ i ≤ n), we will make sure that we have i of input numbers in a sorted list. Clearly these i sorted numbers will partition the ranks of the remaining n− i unsorted numbers into i + 1 intervals. The (i + 1)th step consists of choosing one of the n − i unsorted numbers uniformly at ran...
متن کاملPulling backwards
extinguished by the transfer. But the extent of the transformation is not yet clear. “It’s possible that what we are doing is turning everything into an oocyte,” says Gurdon. But he believes that oct4 expression is a good sign that the cells are at least headed toward becoming stem cells. Stem cell characteristics may develop only through sequential inductive events. But the optimists are hopin...
متن کاملWalk Backwards to Happiness - Debugging by Time Travel
In circumstances when a variable in a program has an incorrect value the process of debugging it is often a process about discovering the history of that variable, or rather the ancestry of the value that it contains. In this paper we propose a new technique for debugging that revolves around being able to trace back through the history of a particular variable or variables that it depends upon...
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ژورنال
عنوان ژورنال: Nature
سال: 1995
ISSN: 0028-0836,1476-4687
DOI: 10.1038/373021a0