/call_rust_from_cpp_example

Primary LanguageMakefile

Rust from C++ example

This example calls a function implemented in Rust (and C) from C++ code with using no_main attribute. This is different from rust-ffi-examples in that rustc doesn't generate any static/dynamic libraries.

Specifically, this does following step:

  1. Generate a static library libmain.a from main.cpp which is the caller of the function to link (double_num).
  2. Compile dummy.c which defines double_num in C, and link it with libmain.a.
  3. Compile main.rs which defines double_num in Rust and link it with libmain.a.

Commands

Build

make

Execution

# run with Rust function
make run

# run with C function
make run_dummy