Hi Aseem, >But, can I be sure that the memory assigned to 'a' in first place from heap has been freed and if required by some other application it will be available with kernel? Using one of the strategies I described, yes, you can be sure. Note: one of the heap managers I wrote for my own diagnostic purposes NEVER actually frees memory. Memory just grows and grows and grows, until eventually all memory is exhausted. Not useful for a production application, but sometimes useful for diagnostics and debugging certain problems (via unit tests). Sincerely, --Eljay
