[algorithms] fix msvc build error

Author: alemuntoni

tests/core/019-export-matrix/main.cpp

@@ -152,10 +152,10 @@ void testFaceVector(const auto& pm)
 {
     auto faces = vcl::faceIndicesVector<VectorType>(pm);
 
-    uint nIndices = countPerFaceVertexReferences(pm);
+    vcl::uint nIndices = countPerFaceVertexReferences(pm);
     REQUIRE(faces.size() == nIndices);
 
-    uint i = 0;
+    vcl::uint i = 0;
     for (const auto& f : pm.faces()) {
         for (const auto* v : f.vertices()) {
             REQUIRE(faces[i] == pm.index(v));

vclib/core/include/vclib/types/base.h

@@ -79,6 +79,7 @@ enum class MatrixStorageType { ROW_MAJOR, COLUMN_MAJOR };
  * @param[in] e: The enum value.
  * @return The value casted to the underlying type of the enum.
  */
+// TODO: remove from c++23 (std::to_underlying)
 template<typename E>
 constexpr typename std::underlying_type<E>::type toUnderlying(E e) noexcept
 {