Default comparison operators that can be

src/context.hh

@@ -28,10 +28,7 @@ struct JumpList
     const SelectionList& backward(Context& context, int count);
     void forget_buffer(Buffer& buffer);
 
-    friend bool operator==(const JumpList& lhs, const JumpList& rhs)
-    {
-        return lhs.m_jumps == rhs.m_jumps and lhs.m_current == rhs.m_current;
-    }
+    friend bool operator==(const JumpList& lhs, const JumpList& rhs) = default;
 
     size_t current_index() const { return m_current; }
 

src/face.hh

@@ -33,13 +33,7 @@ struct Face
     Attribute attributes = Attribute::Normal;
     Color underline = Color::Default;
 
-    friend constexpr bool operator==(const Face& lhs, const Face& rhs)
-    {
-        return lhs.fg == rhs.fg and
-               lhs.bg == rhs.bg and
-               lhs.underline == rhs.underline and
-               lhs.attributes == rhs.attributes;
-    }
+    friend constexpr bool operator==(const Face& lhs, const Face& rhs) = default;
 
     friend constexpr size_t hash_value(const Face& val)
     {

src/flags.hh

@@ -38,7 +38,7 @@ struct TestableFlags
     constexpr operator Flags() const { return value; }
     constexpr operator UnderlyingType<Flags>() const { return (UnderlyingType<Flags>)value; }
 
-    constexpr bool operator==(const TestableFlags<Flags>& other) const { return value == other.value; }
+    constexpr bool operator==(const TestableFlags<Flags>& other) const = default;
 };
 
 template<WithBitOps Flags>

src/highlighters.hh

@@ -10,12 +10,12 @@ namespace Kakoune
 
 void register_highlighters();
 
-struct InclusiveBufferRange{ BufferCoord first, last; };
-
-inline bool operator==(const InclusiveBufferRange& lhs, const InclusiveBufferRange& rhs)
+struct InclusiveBufferRange
 {
-    return lhs.first == rhs.first and lhs.last == rhs.last;
-}
+    BufferCoord first, last;
+    friend bool operator==(const InclusiveBufferRange& lhs, const InclusiveBufferRange& rhs) = default;
+};
+
 String option_to_string(InclusiveBufferRange range);
 InclusiveBufferRange option_from_string(Meta::Type<InclusiveBufferRange>, StringView str);
 

src/insert_completer.hh

@@ -25,8 +25,7 @@ struct InsertCompleterDesc
         Line
     };
 
-    bool operator==(const InsertCompleterDesc& other) const
-    { return mode == other.mode and param == other.param; }
+    bool operator==(const InsertCompleterDesc& other) const = default;
 
     Mode mode;
     Optional<String> param;

src/line_modification.cc

@@ -88,12 +88,6 @@ Vector<LineModification> compute_line_modifications(const Buffer& buffer, size_t
     return res;
 }
 
-bool operator==(const LineModification& lhs, const LineModification& rhs)
-{
-    return lhs.old_line == rhs.old_line and lhs.new_line == rhs.new_line and
-           lhs.num_removed == rhs.num_removed and lhs.num_added == rhs.num_added;
-}
-
 void LineRangeSet::update(ConstArrayView<LineModification> modifs)
 {
     if (modifs.empty())

src/line_modification.hh

@@ -20,6 +20,8 @@ struct LineModification
     LineCount num_added; // number of lines added (including this one)
 
     LineCount diff() const { return new_line - old_line + num_added - num_removed; }
+
+    friend bool operator==(const LineModification& lhs, const LineModification& rhs) = default;
 };
 
 Vector<LineModification> compute_line_modifications(const Buffer& buffer, size_t timestamp);

src/option.hh

@@ -58,10 +58,7 @@ struct PrefixedList
     P prefix;
     Vector<T, MemoryDomain::Options> list;
 
-    friend bool operator==(const PrefixedList& lhs, const PrefixedList& rhs)
-    {
-        return lhs.prefix == rhs.prefix and lhs.list == rhs.list;
-    }
+    friend bool operator==(const PrefixedList& lhs, const PrefixedList& rhs) = default;
 };
 
 template<typename T>

src/range.hh

@@ -10,11 +10,7 @@ struct Range
     T begin;
     T end;
 
-    friend bool operator==(const Range& lhs, const Range& rhs)
-    {
-        return lhs.begin == rhs.begin and lhs.end == rhs.end;
-    }
-
+    friend bool operator==(const Range& lhs, const Range& rhs) = default;
 
     friend size_t hash_value(const Range& range)
     {

src/ranges.hh

@@ -510,11 +510,7 @@ struct ConcatView
         Iterator& operator++() { if (is2()) ++m_it2; else ++m_it1; return *this; }
         Iterator operator++(int) { auto copy = *this; ++*this; return copy; }
 
-        friend bool operator==(const Iterator& lhs, const Iterator& rhs)
-        {
-            return lhs.m_it1 == rhs.m_it1 and lhs.m_end1 == rhs.m_end1 and
-                   lhs.m_it2 == rhs.m_it2;
-        }
+        friend bool operator==(const Iterator& lhs, const Iterator& rhs) = default;
 
     private:
         bool is2() const { return m_it1 == m_end1; }

src/regex.hh

@@ -60,7 +60,7 @@ struct MatchResults
         iterator& operator++() { m_it += 2; return *this; }
         SubMatch operator*() const { return {*m_it, *(m_it+1)}; }
 
-        friend bool operator==(const iterator& lhs, const iterator& rhs) { return lhs.m_it == rhs.m_it; }
+        friend bool operator==(const iterator& lhs, const iterator& rhs) = default;
     private:
 
         It m_it;
@@ -83,10 +83,7 @@ struct MatchResults
             SubMatch{m_values[i*2], m_values[i*2+1]} : SubMatch{};
     }
 
-    friend bool operator==(const MatchResults& lhs, const MatchResults& rhs)
-    {
-        return lhs.m_values == rhs.m_values;
-    }
+    friend bool operator==(const MatchResults& lhs, const MatchResults& rhs) = default;
 
     void swap(MatchResults& other)
     {

src/terminal_ui.cc

@@ -68,7 +68,7 @@ struct TerminalUI::Window::Line
             text.resize(it - text.begin(), 0);
         }
 
-        friend bool operator==(const Atom& lhs, const Atom& rhs) { return lhs.text == rhs.text and lhs.skip == rhs.skip and lhs.face == rhs.face; }
+        friend bool operator==(const Atom& lhs, const Atom& rhs) = default;
         friend size_t hash_value(const Atom& atom) { return hash_values(atom.text, atom.skip, atom.face); }
     };