ElectricFence

ElectricFence is a utility for C programming and debugging. ElectricFence uses the virtual memory hardware of your system to detect when software overruns malloc() buffer boundaries, and/or to detect any accesses of memory released by free(). ElectricFence will then stop the program on the first instruction that caused a bounds violation and you can use your favorite debugger to display the offending statement. Install ElectricFence if you need a debugger to find malloc() violations.

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