CODEWITHSUNDEEP
cmemory
HUNcut_
HUNcut_

Reputation: 47

Question regarding memory allocation in C

I am having a difficult time getting why the answer is 66 bytes to the following question:

How much memory gets allocated for the data passed through the pointer in the main functions 2nd parameter(not considering the pointer size) in a 64 bit system, if the app is run with

./program alfa beta gamma

Upvotes: 1

Views: 69

Answers (1)

pmg
pmg

Reputation: 108968

The best I could come up with is

argv[0] ==> 8 bytes for pointer itself + 6 bytes for the data ("./app") ==> 14
argv[1] ==> 8 bytes for pointer itself + 5 bytes for the data ("alfa") ==> 13
argv[2] ==> 8 bytes for pointer itself + 5 bytes for the data ("beta") ==> 13
argv[3] ==> 8 bytes for pointer itself + 6 bytes for the data ("gamma") ==> 14
argv[4] ==> 8 bytes for the pointer (NULL) ==> 8

TOTAL: 62

Maybe add 4 bytes for argc for 66 bytes??

Upvotes: 2

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