Added NamedValueSet::isEmpty()

modules/juce_core/containers/juce_NamedValueSet.cpp

@@ -39,7 +39,7 @@ struct NamedValueSet::NamedValue
     {
     }
 
-    NamedValue (Identifier&& n, var&& v)
+    NamedValue (Identifier&& n, var&& v) noexcept
         : name (static_cast<Identifier&&> (n)),
           value (static_cast<var&&> (v))
     {
@@ -114,6 +114,11 @@ int NamedValueSet::size() const noexcept
     return values.size();
 }
 
+bool NamedValueSet::isEmpty() const noexcept
+{
+    return values.isEmpty();
+}
+
 const var& NamedValueSet::operator[] (const Identifier& name) const noexcept
 {
     if (const var* v = getVarPointer (name))

modules/juce_core/containers/juce_NamedValueSet.h

@@ -63,6 +63,9 @@ public:
     /** Returns the total number of values that the set contains. */
     int size() const noexcept;
 
+    /** Returns true if the set is empty. */
+    bool isEmpty() const noexcept;
+
     /** Returns the value of a named item.
         If the name isn't found, this will return a void variant.
         @see getProperty