Some people are far more specialized in what they work on.
- Apple's Swift codebase is 54.8% c++ [0]
- Microsoft's CNTK codebase is 57.6% c++ [1]
- Bitcoin's codebase is 68.6% c++[2]
- XBMC's codebase is 84.7% c++[3]
If you work on certain or specific types of projects, like ones making the tools that others use do their projects, then you are typically working more in only 1-2 languages at a time.
- Apple's Swift codebase is 54.8% c++ [0]
- Microsoft's CNTK codebase is 57.6% c++ [1]
- Bitcoin's codebase is 68.6% c++[2]
- XBMC's codebase is 84.7% c++[3]
If you work on certain or specific types of projects, like ones making the tools that others use do their projects, then you are typically working more in only 1-2 languages at a time.
[0] https://github.com/apple/swift
[1] https://github.com/Microsoft/CNTK
[2] https://github.com/bitcoin/bitcoin
[3] https://github.com/xbmc/xbmc