Comments (4)
and here is my full project:
hello_cxx.zip
from cxx.
Finally I move the bridge code into the lib.rs, and change the build.rs
from "cxx_build::bridge("src/main.rs")" to "cxx_build::bridge("src/lib.rs")",
it works.
It should be a purposely design because there is no way to share if you write your ffi code in bin crate. It should be in lib crate. Am I right?
from cxx.
Add "l static=cxxbridge-demo" to lib crate is not the proper way, it still doesn't work if the cpp code in a extern cpp lib.
Is there a rule says that must only one bin crate exist in the package?
from cxx.
see #1195 (comment) and rust-lang/cargo#8919 (comment)
"
This is currently expected behavior in Cargo. Cargo links the native libraries to the Rust library but then doesn't link them to the binary, assuming that the Rust library is linked to in the binary. If you add extern crate demo to your src/main.rs does it work?
"
They all says "extern crate hello_cxx;". I test and found: It is not necessay. It only works If the lib crate and bin crate are not in same package.
Yes, one native library can only be added to one crate?
The limitation seems come from "build.rs" only works for one crate
from cxx.
Related Issues (20)
- cxx::bridge behind a feature HOT 1
- Proposal: Implement Panic-to-Exception Handling Mode on FFI Boundary (Seeking Feedback)
- Can't figure out proper shim for UniquePtr instead of returning global singleton
- Compilation Issue: Linking to std in no_std Environment
- Compiling cdylib HOT 1
- Is it possible to mark a C++ type as `Trivial`? HOT 2
- Question: estimate workload to call functions from geogram HOT 1
- Returning `CxxString` from Rust to C++ HOT 5
- Extern C++ Enums HOT 5
- Advice/example on docs.rs strategy HOT 2
- Feature Request: Add support for nested Vector types HOT 1
- Building two CXX C++ bindings with the same symbols but in different namespaces. HOT 2
- Including bridge from another crate
- Error in configuring crates_universe when included as a Bazel module HOT 3
- Error compiling `cxx.cc` on Windows HOT 1
- Proposal: implementing native C++ std::error_code
- Link failure when using CXX-backed function from another crate HOT 1
- Unsupported element type of Vec<[u64; 3]>
- How to include C++ files whose directory is given by an environment variable? HOT 1
- Error compiling demo to wasm on macOS HOT 5
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from cxx.