What is difference between Dynamic memory allocation and Static memory Allocation?
I don't understand this code:
int arrA[20];
int* arrB = new int [20];
What is the difference between those two lines? Why does Dynamic allocation have array size?
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In static memory allocation, memory is allocated during compile-time.
Whereas in dynamic memory allocation, memory is allocated during run-time.
The new keyword is used for dynamic memory allocation.
Deepesh Choudhary
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Execuse me I have more question for you Why Dynamic allocation defination array size? For example int* arrB = new int [20]; – zizon_seunghak Apr 17 '17 at 07:43
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Yes, you may ask. – Deepesh Choudhary Apr 17 '17 at 07:45
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Size has to defined, whether static or dynamic allocation. Size tells how much memory your program needs. – Deepesh Choudhary Apr 17 '17 at 07:58
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I under stand very well~~~ Thank you^^ – zizon_seunghak Apr 17 '17 at 08:02
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I could have upvoted your question, but sorry because I don't have enough reputation. +1 from my side. – Deepesh Choudhary Apr 17 '17 at 08:03