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Tip of the Day
Language: C++
Expertise: Beginner
Aug 12, 1999

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


Functions Returning Arrays

Question:
Is it possible for a function to return an array instead of a single value?

Answer:
No but, then again, you don't really pass arrays as parameters, either. What C/C++ can do is pass the address of an array (a pointer) and you can return a pointer, too. Just be careful that when you return a pointer to an array, that the array is properly allocated.

For example, if you create an array within your function:

 
int *MyFunc()
{
   int a[20];
   return a;
}
this will fail because local variables are allocated on the stack and will no longer be valid when the function returns.
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