How Garbage Collector works?

[Nick Sabalausky]

"Borneq" <borneq at antyspam.hidden.pl> wrote in message 
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> U¿ytkownik "Nick Sabalausky" <a at a.a> napisa³ w wiadomo¶ci 
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>> langauge  like the JVM are misconceptions. There's nothing about
>> pointers that  prevents garbage collection. The pointers do cause some
>
> We have array and pointer that not points at start array. When we have 
> want to free memory we mantain 4 bytes pointer+ 4 bytes array positions = 
> 8 bytes (=16 bytes on 64 bits !) ?
> How can free block when pointer not points to begin of block?

The GC keeps track of the starting address and the length of each 
allocation.