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IFD:EAI SoS21/course material/Session 3: File Structuring, Pointers and Addresses: Difference between revisions
IFD:EAI SoS21/course material/Session 3: File Structuring, Pointers and Addresses (view source)
Revision as of 11:52, 27 April 2021
, 27 April 2021→Pointers and Addresses
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When we create a pointer to our Point2D, the syntax is like this: | When we create a pointer to our Point2D, the syntax is like this: | ||
< | <source lang="c++" highlight="4">Point2D* p2 = new Point2D(1,2); | ||
... | ... | ||
delete p2;</ | delete p2;</source> | ||
We need to use the asterisk to denote, that we want to create a pointer and we need to use the "new" keyword to reserve the memory for our Point2D. After the "new" keyword we can initialize our Point2D directly as shown before. | We need to use the asterisk to denote, that we want to create a pointer and we need to use the "new" keyword to reserve the memory for our Point2D. After the "new" keyword we can initialize our Point2D directly as shown before. | ||