rust

来源： https://stackoverflow.com/questions/54520085/why-are-iterator-items-which-are-references-not-cast-to-a-trait-object-reference

来源： https://stackoverflow.com/questions/54520085/why-are-iterator-items-which-are-references-not-cast-to-a-trait-object-reference

来源： https://stackoverflow.com/questions/63314288/why-implementations-for-rust-debug-trait-uses-formatter-type-elision

来源： https://stackoverflow.com/questions/63314288/why-implementations-for-rust-debug-trait-uses-formatter-type-elision

来源： https://stackoverflow.com/questions/62731538/serialize-vec-of-external-crate-enum-which-doesnt-implement-serialization

来源： https://stackoverflow.com/questions/62731538/serialize-vec-of-external-crate-enum-which-doesnt-implement-serialization

问题 I build a Rust program that calls a C++ function via a C interface. In order to execute the program, I have to run: export LD_LIBRARY_PATH=<path to shared c lib> or I get an error: error while loading shared libraries: libtest.so: cannot open shared object file: No such file or directory I tried to set the variable in a build script using std::process::Command Command::new("sh").arg("export").arg("LD_LIBRARY_PATH=<path to shared c lib>"); Although the command executes without an error, the

问题 I build a Rust program that calls a C++ function via a C interface. In order to execute the program, I have to run: export LD_LIBRARY_PATH=<path to shared c lib> or I get an error: error while loading shared libraries: libtest.so: cannot open shared object file: No such file or directory I tried to set the variable in a build script using std::process::Command Command::new("sh").arg("export").arg("LD_LIBRARY_PATH=<path to shared c lib>"); Although the command executes without an error, the

问题 I build a Rust program that calls a C++ function via a C interface. In order to execute the program, I have to run: export LD_LIBRARY_PATH=<path to shared c lib> or I get an error: error while loading shared libraries: libtest.so: cannot open shared object file: No such file or directory I tried to set the variable in a build script using std::process::Command Command::new("sh").arg("export").arg("LD_LIBRARY_PATH=<path to shared c lib>"); Although the command executes without an error, the

问题 Rust warns for unused private items: warning: function is never used: `hmm` --> src/example.rs:357:1 | 357 | fn hmm() { | ^^^^^^^^ | = note: #[warn(dead_code)] on by default I have some code marked pub that I know is not being used. How can I get the compiler to warn me of this? This is in the context of a library and a series of binaries, all in the same workspace. The library is only used by those binaries; the library isn't being consumed by anybody else and I'm not going to upload to