diff --git a/include/nameof.hpp b/include/nameof.hpp
index 2032c3d..857b4fe 100644
--- a/include/nameof.hpp
+++ b/include/nameof.hpp
@@ -866,7 +866,7 @@ string nameof_type_rtti(const char* tn) {
   const auto dmg = abi::__cxa_demangle(tn, nullptr, nullptr, nullptr);
   const auto name = string{dmg};
   free(dmg);
-  assert(name.size() > 0 && "Type does not have a name.");
+  assert(!name.empty() && "Type does not have a name.");
 
   return name;
 }
@@ -877,7 +877,7 @@ string nameof_full_type_rtti(const char* tn) {
   const auto dmg = abi::__cxa_demangle(tn, nullptr, nullptr, nullptr);
   auto name = string{dmg};
   free(dmg);
-  assert(name.size() > 0 && "Type does not have a name.");
+  assert(!name.empty() && "Type does not have a name.");
   if constexpr (std::is_const_v<std::remove_reference_t<T>>) {
     name = string{"const "}.append(name);
   }
@@ -901,7 +901,7 @@ string nameof_short_type_rtti(const char* tn) {
   const auto pname = pretty_name(dmg);
   const auto name = string{pname.data(), pname.size()};
   free(dmg);
-  assert(name.size() > 0 && "Type does not have a short name.");
+  assert(!name.empty() && "Type does not have a short name.");
 
   return name;
 }
@@ -910,16 +910,16 @@ template <typename T>
 string nameof_type_rtti(const char* tn) noexcept {
   static_assert(nameof_type_rtti_supported<T>::value, "nameof::nameof_type_rtti unsupported compiler (https://github.com/Neargye/nameof#compiler-compatibility).");
   const auto name = string_view{tn};
-  assert(name.size() > 0 && "Type does not have a name.");
+  assert(!name.empty() && "Type does not have a name.");
 
-  return {name.begin(), name.end()};
+  return {name.data(), name.size()};
 }
 
 template <typename T>
 string nameof_full_type_rtti(const char* tn) noexcept {
   static_assert(nameof_type_rtti_supported<T>::value, "nameof::nameof_type_rtti unsupported compiler (https://github.com/Neargye/nameof#compiler-compatibility).");
   auto name = string{tn};
-  assert(name.size() > 0 && "Type does not have a name.");
+  assert(!name.empty() && "Type does not have a name.");
   if constexpr (std::is_const_v<std::remove_reference_t<T>>) {
     name = string{"const "}.append(name);
   }
@@ -940,9 +940,9 @@ template <typename T, enable_if_has_short_name_t<T, int> = 0>
 string nameof_short_type_rtti(const char* tn) noexcept {
   static_assert(nameof_type_rtti_supported<T>::value, "nameof::nameof_type_rtti unsupported compiler (https://github.com/Neargye/nameof#compiler-compatibility).");
   const auto name = pretty_name(tn);
-  assert(name.size() > 0 && "Type does not have a short name.");
+  assert(!name.empty() && "Type does not have a short name.");
 
-  return {name.begin(), name.end()};
+  return {name.data(), name.size()};
 }
 #endif
 
@@ -1084,7 +1084,7 @@ template <auto V>
   using D = std::decay_t<decltype(V)>;
   static_assert(detail::nameof_enum_supported<D>::value, "nameof::nameof_enum unsupported compiler (https://github.com/Neargye/nameof#compiler-compatibility).");
   constexpr string_view name = detail::enum_name_v<D, V>;
-  static_assert(name.size() > 0, "Enum value does not have a name.");
+  static_assert(!name.empty(), "Enum value does not have a name.");
 
   return name;
 }
@@ -1095,7 +1095,7 @@ template <typename T>
   static_assert(detail::nameof_type_supported<T>::value, "nameof::nameof_type unsupported compiler (https://github.com/Neargye/nameof#compiler-compatibility).");
   using U = detail::identity<detail::remove_cvref_t<T>>;
   constexpr string_view name = detail::type_name_v<U>;
-  static_assert(name.size() > 0, "Type does not have a name.");
+  static_assert(!name.empty(), "Type does not have a name.");
 
   return name;
 }
@@ -1106,7 +1106,7 @@ template <typename T>
   static_assert(detail::nameof_type_supported<T>::value, "nameof::nameof_type unsupported compiler (https://github.com/Neargye/nameof#compiler-compatibility).");
   using U = detail::identity<T>;
   constexpr string_view name = detail::type_name_v<U>;
-  static_assert(name.size() > 0, "Type does not have a full name.");
+  static_assert(!name.empty(), "Type does not have a full name.");
 
   return name;
 }
@@ -1117,7 +1117,7 @@ template <typename T>
   static_assert(detail::nameof_type_supported<T>::value, "nameof::nameof_type unsupported compiler (https://github.com/Neargye/nameof#compiler-compatibility).");
   using U = detail::identity<detail::remove_cvref_t<T>>;
   constexpr string_view name = detail::pretty_name(detail::type_name_v<U>);
-  static_assert(name.size() > 0, "Type does not have a short name.");
+  static_assert(!name.empty(), "Type does not have a short name.");
 
   return name;
 }
@@ -1127,7 +1127,7 @@ template <auto V>
 [[nodiscard]] constexpr auto nameof_member() noexcept -> std::enable_if_t<std::is_member_pointer_v<decltype(V)>, string_view> {
   static_assert(detail::nameof_member_supported<decltype(V)>::value, "nameof::nameof_memder unsupported compiler (https://github.com/Neargye/nameof#compiler-compatibility).");
   constexpr string_view name = detail::member_name_v<V>;
-  static_assert(name.size() > 0, "Member does not have a name.");
+  static_assert(!name.empty(), "Member does not have a name.");
 
   return name;
 }
@@ -1135,30 +1135,30 @@ template <auto V>
 } // namespace nameof
 
 // Obtains name of variable, function, macro.
-#define NAMEOF(...) []() constexpr noexcept {                          \
-  ::std::void_t<decltype(__VA_ARGS__)>();                              \
-  constexpr auto _name = ::nameof::detail::pretty_name(#__VA_ARGS__);  \
-  static_assert(_name.size() > 0, "Expression does not have a name."); \
-  constexpr auto _size = _name.size();                                 \
-  constexpr auto _nameof = ::nameof::cstring<_size>{_name};            \
+#define NAMEOF(...) []() constexpr noexcept {                         \
+  ::std::void_t<decltype(__VA_ARGS__)>();                             \
+  constexpr auto _name = ::nameof::detail::pretty_name(#__VA_ARGS__); \
+  static_assert(!_name.empty(), "Expression does not have a name.");  \
+  constexpr auto _size = _name.size();                                \
+  constexpr auto _nameof = ::nameof::cstring<_size>{_name};           \
   return _nameof; }()
 
 // Obtains full name of variable, function, macro.
 #define NAMEOF_FULL(...) []() constexpr noexcept {                           \
   ::std::void_t<decltype(__VA_ARGS__)>();                                    \
   constexpr auto _name = ::nameof::detail::pretty_name(#__VA_ARGS__, false); \
-  static_assert(_name.size() > 0, "Expression does not have a name.");       \
+  static_assert(!_name.empty(), "Expression does not have a name.");         \
   constexpr auto _size = _name.size();                                       \
   constexpr auto _nameof_full = ::nameof::cstring<_size>{_name};             \
   return _nameof_full; }()
 
 // Obtains raw name of variable, function, macro.
-#define NAMEOF_RAW(...) []() constexpr noexcept {                      \
-  ::std::void_t<decltype(__VA_ARGS__)>();                              \
-  constexpr auto _name = ::nameof::string_view{#__VA_ARGS__};          \
-  static_assert(_name.size() > 0, "Expression does not have a name."); \
-  constexpr auto _size = _name.size();                                 \
-  constexpr auto _nameof_raw = ::nameof::cstring<_size>{_name};        \
+#define NAMEOF_RAW(...) []() constexpr noexcept {                    \
+  ::std::void_t<decltype(__VA_ARGS__)>();                            \
+  constexpr auto _name = ::nameof::string_view{#__VA_ARGS__};        \
+  static_assert(!_name.empty(), "Expression does not have a name."); \
+  constexpr auto _size = _name.size();                               \
+  constexpr auto _nameof_raw = ::nameof::cstring<_size>{_name};      \
   return _nameof_raw; }()
 
 // Obtains name of enum variable.
diff --git a/test/test_aliases.cpp b/test/test_aliases.cpp
index ed893e0..0f1d417 100644
--- a/test/test_aliases.cpp
+++ b/test/test_aliases.cpp
@@ -31,13 +31,11 @@ struct MyString {
   MyString(const char* s) : str{s} {} // required
   MyString(const char* s, std::size_t l) : str{s, l} {} // required
   bool empty() const { return str.empty(); } // required
-  std::size_t size() const { return str.size(); } // required
-  auto begin() const { return str.begin(); } // required
-  auto end() const { return str.end(); } // required
   MyString& append(std::size_t count, char c) { str.append(count, c); return *this; } // required
   MyString& append(const char* s) { str.append(s); return *this; } // required
   MyString& append(const MyString& s) { str.append(s.str); return *this; } // required
 
+  std::size_t size() const { return str.size(); }
   int compare(const char* s) const { return str.compare(s); }
 
  private:
@@ -55,14 +53,9 @@ struct MyStringView {
   constexpr std::size_t size() const { return str.size(); } // required
   constexpr const char* data() const { return str.data(); } // required
   constexpr const char& operator[](std::size_t i) const { return str[i]; } // required
-  constexpr auto begin() const { return str.begin(); } // required
-  constexpr auto end() const { return str.end(); } // required
-  constexpr std::size_t find(char c) const { return str.find(c); } // required
-  constexpr MyStringView substr(std::size_t p, std::size_t n) { return str.substr(p, n); } // required
   constexpr void remove_prefix(std::size_t n) { str.remove_prefix(n); } // required
   constexpr void remove_suffix(std::size_t n) { str.remove_suffix(n); } // required
   constexpr int compare(MyStringView s) const { return str.compare(s.str); } // required
-  friend constexpr bool operator==(MyStringView lhs, MyStringView rhs); // required
 
   constexpr int compare(const char* s) const { return str.compare(s); }
 
@@ -72,10 +65,6 @@ struct MyStringView {
   constexpr MyStringView(std::string_view s) : str{s} {}
 };
 
-constexpr bool operator==(MyStringView lhs, MyStringView rhs) {
-  return lhs.str == rhs.str;
-}
-
 #define NAMEOF_USING_ALIAS_STRING using string = MyString;
 #define NAMEOF_USING_ALIAS_STRING_VIEW using string_view = MyStringView;