Simple question about list of one dimensional arrays.

[anda_skoa]

I did not mean to imply that these classes were equal to std::array.

However, the var length array will be very similar, it will also allocate the given size on the stack. An alternative if C++11 is not available.

Not sure what you mean with indirection though.

Cheers,
_

[yeye_olive]

What I mean by "indirection" is an access that involves dereferencing a pointer. QVector needs at least one level of indirection since it allocates its elements on the heap, and perhaps another one due to implicit sharing. A QVarLengthArray has two modes, depending on whether it uses the storage on the stack (no indirection) or on the heap (one indirection). Even though the former mode avoids the indirection, it uselessly allocates storage for two integers and a pointer, and each access to an element must test the mode.

QVector and QVarLengthArray are overkill for 6 integers and lack the typing guarantees of a plain array, or even

struct ArrayInt6 {
  int elements[6];
}

struct ArrayInt6 {
  int elements[6];
}

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when C++11 is not an option.