[erklik]

> compilers

Absolutely. Otherwise, all compilers would be written in Assmebly. Most compilers used today are written in C and the compiler for C (GCC) is written in C itself.

The C language was also written by Ken Thomson, because he was unhappy with the BCPL language, so the compiler for C was originally written in B. So on and So forth.

More Recently, the initial compiler for Rust was written in OCaml but is now written in Rust itself.

[umanwizard]

Slight nit: GCC has been written in C++ (not C) for several years now.