Add missing block referred to in comment

1 files changed, 4 insertions, 1 deletions

diff --git a/objective-c.html.markdown b/objective-c.html.markdown
index 04c4e529..de3884af 100644
--- a/objective-c.html.markdown
+++ b/objective-c.html.markdown
@@ -731,7 +731,10 @@ if ([myClass conformsToProtocol:@protocol(CarUtilities)]) {
 ///////////////////////////////////////
 // Blocks are statements of code, just like a function, that are able to be used as data.
 // Below is a simple block with an integer argument that returns the argument plus 4.
-int (^addUp)(int n); // Declare a variable to store the block.
+^(int n) {
+    return n + 4;
+}
+int (^addUp)(int n); // Declare a variable to store a block.
 void (^noParameterBlockVar)(void); // Example variable declaration of block with no arguments.
 // Blocks have access to variables in the same scope. But the variables are readonly and the
 // value passed to the block is the value of the variable when the block is created.