dolfin team mailing list archive

["Andy Ray Terrel" <aterrel@xxxxxxxxxxxx>]

You probably don't need the explicit keyword for copy constructors as
done in Functions.h , PetscMatrix.h, uBlasMatrix.h, EpetraMatrix.h.
This has the added effect of not being able to pass functions as
arguments (perhaps that is bad but anyhow).  Having just pulled this
seemed to make my code a bit unhappy.

On Tue, Apr 29, 2008 at 9:22 AM, Martin Sandve Alnæs <martinal@xxxxxxxxx> wrote:
> Without it, the constructor may be automatically transformed to an
> operator= for the same type. Take for example this code:
>
> class A
> {
> public:
>  A(int N) { x = new real[N]; }
>  ~A() { delete [] x; }
> };
>
> A a(100);
> a = 200; // legal without explicit above
>
> which will lead to disaster.
>
> --
> Martin
>
>
> 2008/4/29  <kent-and@xxxxxxxxx>:
>> > All constructors with a single argument.
>>  >
>>  > --
>>  > Martin
>>  >
>>  >
>>
>>  Why ? What does it mean ?
>>
>>  Kent
>>
>>
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