RUST String convert to *const i8(c_char) compile to dll,FFI return error string,

[kematy]

fn convert(data:String)->*const i8
{
let ptr:*const u8=data.as_ptr();
let ptr:*const i8=ptr as *const i8;
//let _s=unsafe{*ptr};
ptr
}
inputstring :"JL/G1A-630/45_A"
outputstring:"JL/G1A-630/45_A8���T"
use data.as_ptr() as *const i8, got JL/G1A-630/45_A�We5���,
each time different
I wonder know why?

[jonas-schievink]

Hi! This issue tracker is mainly meant for bug reports and concrete, small feature requests. Questions like this are better asked in the user forum at https://users.rust-lang.org/ or on one of the chat platforms used by the Rust community.

[kematy]

data.as_ptr()---> must be (data+"\0").as_ptr()