Re: Const Static variables set at run time and a design question.
Hi,
Jim wrote:
I've a set of data which has two spectra associated with each
position. For each spectra you convert from an array position to a
real value using an array offset, a delta and a velocity offset.
These are common to all spectra of the same type and don't change
through the program's run. Unfortunately I don't know them until I
load the file, unless I hard code them and I don't want to do that.
so they are NOT const static because they change while the application runs.
Only solution I can think of is to have a user-defined object called
conversion which has const members set in the constructor and const
accessor methods and have a static object in each type of the specific
spectra classes which inherit from the spectra base class. Does this
seem correct?
Something like that is possible. But I would keep conversion as simple
as possible:
struct conversion
{ double offset;
double whatever;
};
class SpectraBase
{
public virtual const conversion& GetConversion() const = 0;
...
};
Marcel
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