Error while initialising object of C++ in Rust passing using FFI

[rajesh-iitkgp]

I have tried this earlier aswell the values are not being mapped correctly.
I have tried it now again as you said and the output is this:

inside rust
10
32 0 0 0
1273538208 32767 1274816548 32641
1220635728 22047 0 0
0 22047 -1819484088 22047

isn't it if I pass a pointer from rust i will have to call rust again to deallocate the memory to avoid memory leakage
for reference:

How to return byte array from Rust function to FFI C?

If you want to return Rust allocated memory, then you’ll need to export a function to free it as well, which the C code can call. Here’s a quick example: #[repr(C)] struct Buffer { data: *mut u8, len: usize, } extern "C" fn generate_data() -> Buffer { let mut buf = vec![0; 512].into_boxed_slice(); let data = buf.as_mut_ptr(); let len = buf.len(); std::mem::forget(buf); Buffer { data, len } } extern "C" fn free_buf(buf: Buffer) { let s = unsafe { std::slice::fr…