Hi

Ever wondered a beautiful compiler that thinks abt you and cares for you instead of we caring for it. Thats perl. The wonder lies in the data structure that perl uses to alocate the variables. By default for a $variable (i mean a scalar variable) there are two entries that perl has one is the memory location and other is the flag. The memory location can only grow in size but never shrinks.(Dont worry abt the memory management problems thie is the efficient way to do it) So when ever u initialize the variable perl alocates the memeory space to hold the data and also sets the flag. This magic flag has the details abt the type of data. So this is how perl could handle the variables.

Update: There is one more in the scalar variables data structure thats reference count. This is the value that perl's garbasge collector uses to free up the unwanted space.

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