KwickClips Cyber Safety and Ethics · 40 sec · free
What pairs with new int[n]?
Short answer. delete[].
What happens if you forget delete?
A memory leak.
Remember
| new int[n] needs delete[] |
| No delete: memory leak |
Class size known only at run time? Use new. New makes an array while the program runs. M holds seven and nine, so it prints sixteen. Delete frees it. New with brackets needs delete with brackets. Forget it, and memory leaks.
This clip is from the full lesson: Pointers in C++ — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: NIOS Senior Secondary Computer Science (330), NIOS Senior Secondary Computer Science (330), Programming All levels C, Programming All levels C++
More KwickClips from this lesson
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