Hello!

If we can allocate memory by 
  var ptr = Module._alloc(size);

and then free this mem using only ptr by
  Module._free(ptr);

Then it should be possible to recognize size of allocated memory area only 
by pointer? It is may be like
  var size = Module._sizeof(ptr);

I have tried to find implementation of _malloc and _free, but found it only 
for "CORRUPTION_CHECK = 1" case in CorruptionChecker.

Please, point me to source *.js where I can find _malloc and _free 
algorithms.

Also, if you have critical notes about recognizing memory block size by its 
pointer then it would be useful for me to find out this notes.

Thanx!

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