Merge pull request #516 from furunkel/pointer_to_ptr

Add Pointer#to_ptr

2 files changed, 12 insertions, 0 deletions

diff --git a/lib/ffi/pointer.rb b/lib/ffi/pointer.rb
index bfd9406..81859b1 100644
--- a/lib/ffi/pointer.rb
+++ b/lib/ffi/pointer.rb
@@ -130,5 +130,10 @@ module FFI
       }
       self
     end
+
+    # @return [self]
+    def to_ptr
+      self
+    end
   end
 end
diff --git a/spec/ffi/pointer_spec.rb b/spec/ffi/pointer_spec.rb
index 19c1953..bc981e6 100644
--- a/spec/ffi/pointer_spec.rb
+++ b/spec/ffi/pointer_spec.rb
@@ -62,6 +62,13 @@ describe "Pointer" do
     expect { PointerTestLib.ptr_ret_int32(0xfee1deadbeefcafebabe, 0) }.to raise_error
   end
 
+  it "#to_ptr" do
+    memory = FFI::MemoryPointer.new :pointer
+    expect(memory.to_ptr).to eq(memory)
+
+    expect(FFI::Pointer::NULL.to_ptr).to eq(FFI::Pointer::NULL)
+  end
+
   describe "pointer type methods" do
 
     it "#read_pointer" do