[abitoffthetop]

I think the conferences that exist are there to make money, and for vendors to pay to promote their wares. As the platforms such as Java, Python, Javascript, .Net have a focus on tooling the conferences are paid for by the tooling companies and the employers wishing to have their staff associated with the burgeoning tech, ironically with speakers often paid badly just for the exposure, reinforcing the for-profit nature of the conferences.

C/C++ on the other hand would be represented only as an adjunct of a larger industry conference, such as automation , Industry 4.0 or Aerospace and often run by bodies like the IEEEE. There are no large tooling companies for C++, and no-one is making money by creating development tools for a relatively static and stable language, so there's no need to promote it exclusively.

So, the conferences are there, but C++/C exposure is specialised and not profitable to promote.