Quote Originally Posted by hack3rcon View Post
Is Rust-Lang a replacement for C\C++?
It aims to be.

I mean is that can most programs that written in C will rewritten in Rust-Lang in the future?
Can: yes. Will: no. C++ and especially C will stay relevant for a very long time.

If you're asking because you wonder if C and C++ are worth learning, then the answer is yes. The Rust ecosystem wins with web (backend) development because of the many libraries targeting that.