Re: [PATCH 0/1] MR2839: gdiplus: Improve performance of GdipInvertMatrix.

[Bartosz (＠gang65)]

On Wed May 17 09:07:24 2023 +0000, Nikolay Sivov wrote:
> Instead of duplicating checks, it's better to move functional part of
> GdipIsMatrixInvertible() to some inlined helper.

I have tried such approach, but unfortunately I don't know how to do not calculate `matrix_det(matrix)` twice.

Maybe we could introduce function and provide calculated `det`, like:
```
static inline GpStatus check_det(GDIPCONST REAL det)
{
    if (!(fabs(det) >= 1e-5))
        return InvalidParameter;
    return Ok;
}
```