From: Adrián Arroyo Calle <adrian.arroyocalle@gmail.com>
Date: Thu, 6 Jun 2024 20:18:17 +0000 (+0200)
Subject: Manage Float and Double FFI types in structs
X-Git-Tag: v0.10.0~131^2
X-Git-Url: https://git.sagredo.dev/?a=commitdiff_plain;h=a72632ae85520c359eb7c2615ecbbb4bde94d296;p=scryer-prolog.git

Manage Float and Double FFI types in structs
---

diff --git a/src/ffi.rs b/src/ffi.rs
index a8ffd744..418accce 100644
--- a/src/ffi.rs
+++ b/src/ffi.rs
@@ -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