According to https://devblogs.microsoft.com/cppblog/stl-fixes-in-vs-2015-part-2/
this was fixed in VS 2015.

Now size() returns the total number of elements, and sizes() returns an
N-dimensional vector containing each size separately.

Let’s see how it goes with a very flat hierarchy and no .h extension.

Use size_t instead of ptrdiff_t and reduce header usage.

This code is not of very good quality, but a few methods such as the
RGB/HSV/HSL/YUV conversions are still useful, so I’m deciding to keep
them for now.