How can we determine the size of allocated portion of memory ? Is there any way to crack the "free()" determines the size of allocated memory ?

you can determine the size of allocated memory by using sizeof() keyword.

e.g.
if you will allocate memory using new() keyword

int *p=new int[10]; //Memory dynamically allocated

you can determine the size of allocated memory using sizeof() keyword

int sz=sizeof(p);

you can delete dynamically allocated memory using delete keyword

delete []p;


Thanks & Regards
Venkat Gopu

There is command called size which shows you the memory allocated for a particular section(Data, Text and other shared sections).
You can just use this command to see the size of your a.out file..