[pfultz2]

> I'm surprised the author forgot to consider platform architectures

That is mainly for binary distribution. Most C++ package managers currently are source-based because binary compatibility is not a easy problem(there are some package managers trying to solve it though).

> Unfortunately, it is still terribly easy to write non-portable code with C++

Yes, it easy to call into a platform-specific API, so cross-platform portability is limited by the testing resources for the package maintainer or library author.

[emsy]

I was talking about source code, not binaries. And I didn't mean platform specific APIs either (though that is a problem as well). I was talking about differences between processor architectures. But while we're at it, try using wstrings or snprintf across Windows/Linux.