Fix bugs in example contracts

1 files changed, 26 insertions, 5 deletions

diff --git a/docs/contracts.rst b/docs/contracts.rst
index e9ea1b3b..3c9769ff 100644
--- a/docs/contracts.rst
+++ b/docs/contracts.rst
@@ -213,6 +213,8 @@ In the following example, ``D``, can call ``c.getData()`` to retrieve the value
 
 ::
 
+    // This will not compile
+
     pragma solidity ^0.4.0;
 
     contract C {
@@ -545,9 +547,11 @@ Please ensure you test your fallback function thoroughly to ensure the execution
             test.call(0xabcdef01); // hash does not exist
             // results in test.x becoming == 1.
 
-            // The following call will fail, reject the
-            // Ether and return false:
-            test.send(2 ether);
+            // The following will not compile, but even
+            // if someone sends ether to that contract,
+            // the transaction will fail and reject the
+            // Ether.
+            //test.send(2 ether);
         }
     }
 
@@ -773,13 +777,17 @@ seen in the following example::
 
     pragma solidity ^0.4.0;
 
+    contract owned {
+        function owned() { owner = msg.sender; }
+        address owner;
+    }
+
     contract mortal is owned {
         function kill() {
             if (msg.sender == owner) selfdestruct(owner);
         }
     }
 
-
     contract Base1 is mortal {
         function kill() { /* do cleanup 1 */ mortal.kill(); }
     }
@@ -800,6 +808,11 @@ derived override, but this function will bypass
 
     pragma solidity ^0.4.0;
 
+    contract owned {
+        function owned() { owner = msg.sender; }
+        address owner;
+    }
+
     contract mortal is owned {
         function kill() {
             if (msg.sender == owner) selfdestruct(owner);
@@ -879,6 +892,8 @@ error "Linearization of inheritance graph impossible".
 
 ::
 
+    // This will not compile
+
     pragma solidity ^0.4.0;
 
     contract X {}
@@ -914,10 +929,16 @@ Contract functions can lack an implementation as in the following example (note
         function utterance() returns (bytes32);
     }
 
-Such contracts cannot be compiled (even if they contain implemented functions alongside non-implemented functions), but they can be used as base contracts::
+Such contracts cannot be compiled (even if they contain
+implemented functions alongside non-implemented functions),
+but they can be used as base contracts::
 
     pragma solidity ^0.4.0;
 
+    contract Feline {
+        function utterance() returns (bytes32);
+    }
+
     contract Cat is Feline {
         function utterance() returns (bytes32) { return "miaow"; }
     }