delete[] question

[d1ff1cul1010]

If I declare an array in a class with

  float* arrlist;
arrlist = new float [SZ];

and run through a loop assigning values in the array, do I have to delete every element in array one at a time or can I just use

delete[] arrlist;

This is a pointer to an array of type float right, not an array to pointer floats, so I don't actually have to loop through to delete each element/pointer correct??

[kevinkjt2000]

Can you give the line(s) of code that allocate the memory?

[Spikerocks101]

int * foo = new int[10];
delete[] foo; // will kill the entire array (each individual element of the array that is).
delete foo; // will only kill the first bit of the array, but the rest of the array will still be allocated. 

[cire]

Spikerocks101 wrote:

int * foo = new int[10];
delete[] foo; // will kill the entire array (each individual element of the array that is).
delete foo; // will only kill the first bit of the array, but the rest of the array will still be allocated. 

The delete on line 3 results in undefined behavior. Line 2 is the correct way to do this.

@OP: If you didn't new it, don't delete it.