public static void AddScaleCopy(float a, ReadOnlySpan <float> src, ReadOnlySpan <float> dst, Span <float> res, int count)
{
Contracts.AssertNonEmpty(dst);
Contracts.Assert(0 < count && count <= dst.Length);
Contracts.AssertNonEmpty(src);
Contracts.Assert(count <= src.Length);
Contracts.AssertNonEmpty(res);
Contracts.Assert(count <= res.Length);
unsafe
{
fixed(float *pdst = &MemoryMarshal.GetReference(dst))
fixed(float *psrc = &MemoryMarshal.GetReference(src))
fixed(float *pres = &MemoryMarshal.GetReference(res))
Thunk.AddScaleCopyU(a, psrc, pdst, pres, count);
}
}