Yann Langlais (langlais@corte-madera.geoquest.slb.com) wrote:
: Hi, I'm trying to create a small mathematical library and I'd like to create a fondamental
: pseudo type "scalar" independant from the memory representation (float, double, Complex, whatever...)
: but once specified, to inherit of the standard types such as -------^.
: I'd like scalar to behave like this:


Sounds like you might want to use templates, NOT typedefs!

Ken Walter

Hi, I'm trying to create a small mathematical library and I'd like to create a fondamental
pseudo type "scalar" independant from the memory representation (float, double, Complex, whatever...)
but once specified, to inherit of the standard types such as -------^.
I'd like scalar to behave like this:


class Matrix
{
    int
 row, col;

    scalar()
 **Mat;
...
    scalar()
}

void foo(..)
{
    scalar(float)
 k;

    scalar(double)
 j;

    Matrix(float, 3, 3, ....)
 TransformationMatrix;

...

}

This can't be done with a #define scalar(type) type neither by a typedef if I want to create different
instances of scalar with different standard types.
Is there a "smart" way to code such a thing, without having to recreate the world of C/C++ arithmetics???

   Thanks,
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                               Yann:-)
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