Creating a static C struct containing strings

Question

I\'m trying to create a dynamic library in Rust that exports a struct as a symbol that will be loaded into a C program via dlopen().

However, I\'m was running into s

Answer 1

The layout of a slice (&[T] or &str) is a pointer followed by a length, as documented by the Slice struct of the std::raw module. That's why reading the version field from your C code shows the length of the name field's value. (Note, however, that the exact memory layout of slices is not considered stable, so it might change in a later version. In any case, you should not pass Rust-specific data types to C; only pass primitive types – which includes raw pointers – and types annotated with #[repr(C)].)

EDIT: Unfortunately, there seems to be no way to do this in Rust for now. There are functions to get raw pointers from slices, but function calls are not allowed in static initializers. As suggested by sellibitze in the comments, you should define that variable in a C source file.