clear_at and clear_at? are deprecated. Use unset_at and unset_at? ins…

…tead.

README.md

@@ -20,7 +20,7 @@ Install
 Usage
 -----
 
-Set and clear bits:
+Set and unset bits:
 
 ```ruby
 b = Bitwise.new("\x00")
@@ -34,10 +34,13 @@ b.set_at(4)
 b.bits
  => "01001000"
 
-b.clear_at(1)
+b.unset_at(1)
 
 b.bits
  => "00001000"
+
+b.set_at?(4)
+ => true
 ```
 
 String-based accessor:

lib/bitwise.rb

@@ -19,19 +19,29 @@ def set_at(index)
     @value.setbyte(@div, @byte | bitmask)
   end
 
-  def clear_at(index)
+  def unset_at(index)
     get_byte(index)
     @value.setbyte(@div, @byte  & ~bitmask)
   end
 
+  def clear_at(index)
+    warn 'Bitwise#clear_at is deprecated. Use Bitwise#unset_at instead.'
+    unset_at(index)
+  end
+
   def set_at?(index)
     get_bit(index) == 1
   end
 
-  def clear_at?(index)
+  def unset_at?(index)
     get_bit(index) == 0
   end
 
+  def clear_at?(index)
+    warn 'Bitwise#clear_at? is deprecated. Use Bitwise#unset_at? instead.'
+    unset_at?(index)
+  end
+
   def get_bit(index)
     get_byte(index)
     (@byte & bitmask) > 0 ? 1 : 0

spec/bitwise_spec.rb

@@ -12,15 +12,15 @@
     @bitwise.raw.encoding.should == Encoding::BINARY
   end
 
-  it "set and clear" do
+  it "set and unset" do
     @bitwise.bits.should == '00000000'
 
     @bitwise.set_at(1)
     @bitwise.set_at(4)
     @bitwise.bits.should == '01001000'
     @bitwise.cardinality.should == 2
 
-    @bitwise.clear_at(1)
+    @bitwise.unset_at(1)
     @bitwise.bits.should == '00001000'
     @bitwise.cardinality.should == 1