[Pay08]

Why do you think so?

[uecker]

For two reasons: First, where C++ features are used, it make the code harder to understand rather than easier. Second, it requires newer and more complex toolchains to build GCC itself. Some people still maintain the last C version of GCC just to keep the bootstrap path open.

[Pay08]

I'm very far from compiler development, but in my experience, while C++ is hard to read, the equivalent C code would be much more unreadable.