minor changes

src/uvw/event.hpp

@@ -34,6 +34,9 @@ struct Event: BaseEvent {
 struct ErrorEvent: Event<ErrorEvent> {
     explicit ErrorEvent(int code = 0) noexcept: ec(code) { }
 
+    template<typename U, typename = std::enable_if_t<std::is_convertible<U, int>::value>>
+    explicit ErrorEvent(U val) noexcept: ec{static_cast<int>(val)} { }
+
     const char * what() const noexcept { return uv_strerror(ec); }
     int code() const noexcept { return ec; }
 

src/uvw/tty.hpp

@@ -30,9 +30,7 @@ class TTY final: public Stream<TTY, uv_tty_t> {
     explicit TTY(std::shared_ptr<Loop> ref,
                  FileHandle desc,
                  bool readable)
-        : Stream{std::move(ref)},
-          fd{static_cast<FileHandle::Type>(desc)},
-          rw{readable}
+        : Stream{std::move(ref)}, fd{desc}, rw{readable}
     { }
 
 public:

src/uvw/util.hpp

@@ -47,7 +47,12 @@ private:
 template<typename T>
 struct UVTypeWrapper {
     using Type = T;
+
+    template<typename U, typename = std::enable_if_t<std::is_convertible<U, T>::value>>
+    constexpr UVTypeWrapper(U val): value{static_cast<T>(val)} { }
+
     constexpr UVTypeWrapper(Type val): value{val} { }
+
     constexpr operator Type() const noexcept { return value; }
 private:
     const Type value;