unique_ptr syntax

[santiagorf]

Hi,
I'm having problems with the syntax of unique_ptr.

If in my header file I have declare a unique_ptr:

    unique_ptr<float[]> ptr;

How do I allocate an array of float on my source file? i.e. something that looks like this:

ptr = new float [123];

thanks in advance

[nvrmnd]

AFAIK you should not use unique_ptr<> or any other smart ptr
to hold dynamic arrays

U can use vectors instead

[giblit]

To assign it an array of 123 floats you either want to use the constructor or reset method.

std::unique_ptr<float[]> ptr(new float[123]);
//or
std::unique_ptr<float[]> ptr;
ptr.reset(new float[123]);

http://www.cplusplus.com/reference/memory/unique_ptr/reset/
http://www.cplusplus.com/reference/memory/unique_ptr/unique_ptr/
http://www.cplusplus.com/reference/memory/unique_ptr/

[edit] you probably should use a stl container though
[edit2] This might be helpful also:
http://www.cplusplus.com/reference/memory/unique_ptr/operator=/

[santiagorf]

thanks!, that was exactly what I was looking for