debugging backwards


i have twin questions :




  1. while doing source turn debugging (using any debugger) does any debugger save state iteration/for-loop/any formula executed grant user behind formerly executed code/data state during after indicate during debugging?
    the need variable/pointer depraved somewhere surpassing during execution nonetheless accessed after / after execution formula thats crashes/hangs code, i behind function/at non-static corrupted/wrong value computed combined ? illusory any debugger (gcc, msvc6.0 ...)


  2. does any debugger/ide have sustenance memory address/variable noted "analysis", should arrangement duty file, formula altered memory(write), each changed/written?




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