Modified arg types for `NumberNode::bound_axis_sums()

Added a `const` to `State& state`. Fixed typo.

Author: fastbodin

dwave/optimization/include/dwave-optimization/nodes/numbers.hpp

@@ -157,7 +157,7 @@ class NumberNode : public ArrayOutputMixin<ArrayNode>, public DecisionNode {
     /// Return the state-dependent sum of the values within each slice
     /// along each bound axis. The returned vector is indexed by the
     /// bound axes in the same ordering that `axis_wise_bounds()` returns.
-    const std::vector<std::vector<double>>& bound_axis_sums(State& state) const;
+    const std::vector<std::vector<double>>& bound_axis_sums(const State& state) const;
 
  protected:
     explicit NumberNode(std::span<const ssize_t> shape, std::vector<double> lower_bound,

dwave/optimization/src/nodes/numbers.cpp

@@ -448,7 +448,7 @@ const std::vector<NumberNode::AxisBound>& NumberNode::axis_wise_bounds() const {
     return bound_axes_info_;
 }
 
-const std::vector<std::vector<double>>& NumberNode::bound_axis_sums(State& state) const {
+const std::vector<std::vector<double>>& NumberNode::bound_axis_sums(const State& state) const {
     return data_ptr<NumberNodeStateData>(state)->bound_axes_sums;
 }
 
@@ -614,7 +614,7 @@ void check_bound_axes_integrality(const std::vector<NumberNode::AxisBound>& boun
             const double bound = bound_axis_info.get_bound(i);
             if (bound != std::floor(bound)) {
                 throw std::invalid_argument(
-                        "Axis wise bounds for integral number arrays must be intregral.");
+                        "Axis wise bounds for integral number arrays must be integral.");
             }
         }
     }

tests/cpp/nodes/test_numbers.cpp

@@ -581,7 +581,7 @@ TEST_CASE("BinaryNode") {
 
         REQUIRE_THROWS_WITH(graph.emplace_node<BinaryNode>(std::initializer_list<ssize_t>{2, 3, 4},
                                                            std::nullopt, std::nullopt, bound_axes),
-                            "Axis wise bounds for integral number arrays must be intregral.");
+                            "Axis wise bounds for integral number arrays must be integral.");
     }
 
     GIVEN("(3x2x2)-BinaryNode with infeasible axis-wise bound on axis: 0") {
@@ -1403,7 +1403,7 @@ TEST_CASE("IntegerNode") {
 
         REQUIRE_THROWS_WITH(graph.emplace_node<IntegerNode>(std::initializer_list<ssize_t>{2, 3, 4},
                                                             std::nullopt, std::nullopt, bound_axes),
-                            "Axis wise bounds for integral number arrays must be intregral.");
+                            "Axis wise bounds for integral number arrays must be integral.");
     }
 
     GIVEN("(2x3x2)-IntegerNode with infeasible axis-wise bound on axis: 0") {