feat: dot weights are signed

concrete-optimizer-cpp/src/concrete-optimizer.rs

@@ -247,7 +247,7 @@ impl OperationDag {
 
 pub struct Weights(operator::Weights);
 
-fn vector(weights: &[u64]) -> Box<Weights> {
+fn vector(weights: &[i64]) -> Box<Weights> {
     Box::new(Weights(operator::Weights::vector(weights)))
 }
 
@@ -320,7 +320,7 @@ mod ffi {
         type Weights;
 
         #[namespace = "concrete_optimizer::weights"]
-        fn vector(weights: &[u64]) -> Box<Weights>;
+        fn vector(weights: &[i64]) -> Box<Weights>;
     }
 
     #[derive(Clone, Copy)]

concrete-optimizer-cpp/src/cpp/concrete-optimizer.cpp

@@ -1099,7 +1099,7 @@ void concrete_optimizer$cxxbridge1$OperationDag$dump(const ::concrete_optimizer:
 
 namespace weights {
 extern "C" {
-::concrete_optimizer::Weights *concrete_optimizer$weights$cxxbridge1$vector(::rust::Slice<const ::std::uint64_t> weights) noexcept;
+::concrete_optimizer::Weights *concrete_optimizer$weights$cxxbridge1$vector(::rust::Slice<const ::std::int64_t> weights) noexcept;
 } // extern "C"
 } // namespace weights
 
@@ -1172,7 +1172,7 @@ namespace dag {
 }
 
 namespace weights {
-::rust::Box<::concrete_optimizer::Weights> vector(::rust::Slice<const ::std::uint64_t> weights) noexcept {
+::rust::Box<::concrete_optimizer::Weights> vector(::rust::Slice<const ::std::int64_t> weights) noexcept {
   return ::rust::Box<::concrete_optimizer::Weights>::from_raw(concrete_optimizer$weights$cxxbridge1$vector(weights));
 }
 } // namespace weights

concrete-optimizer-cpp/src/cpp/concrete-optimizer.hpp

@@ -1050,6 +1050,6 @@ namespace dag {
 } // namespace dag
 
 namespace weights {
-::rust::Box<::concrete_optimizer::Weights> vector(::rust::Slice<const ::std::uint64_t> weights) noexcept;
+::rust::Box<::concrete_optimizer::Weights> vector(::rust::Slice<const ::std::int64_t> weights) noexcept;
 } // namespace weights
 } // namespace concrete_optimizer

concrete-optimizer-cpp/tests/src/main.cpp

@@ -42,7 +42,7 @@ void test_dag_no_lut() {
 
   std::vector<concrete_optimizer::dag::OperatorIndex> inputs = {node1};
 
-  std::vector<uint64_t> weight_vec = {1, 1, 1};
+  std::vector<int64_t> weight_vec = {1, 1, 1};
 
   rust::cxxbridge1::Box<concrete_optimizer::Weights> weights =
       concrete_optimizer::weights::vector(slice(weight_vec));