rishi/scryer-prolog
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Manage Float and Double FFI types in structs

Browse Source
This commit is contained in:
Adrián Arroyo Calle
2024-06-06 22:18:17 +02:00
parent 070f1e8dfa
commit a72632ae85
1 changed files with 12 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/ffi.rs
View File

@@ -436,6 +436,18 @@ impl ForeignFunctionTable {
}
libffi::raw::FFI_TYPE_SINT64 => read_and_push_int!(i64),
libffi::raw::FFI_TYPE_POINTER => read_and_push_int!(i64),
libffi::raw::FFI_TYPE_FLOAT => {
field_ptr = field_ptr.add(field_ptr.align_offset(std::mem::align_of::<f32>()));
let n = std::ptr::read(field_ptr as *mut f32);
returns.push(Value::Float(f32::from(n).into()));
field_ptr = field_ptr.add(std::mem::size_of::<f32>());
}
libffi::raw::FFI_TYPE_DOUBLE => {
field_ptr = field_ptr.add(field_ptr.align_offset(std::mem::align_of::<f64>()));
let n = std::ptr::read(field_ptr as *mut f64);
returns.push(Value::Float(f64::from(n)));
field_ptr = field_ptr.add(std::mem::size_of::<f64>());
}
libffi::raw::FFI_TYPE_STRUCT => {
let substruct = struct_type.atom_fields[i].as_str();
let struct_type = self