add "pragma solidity ^0.4.0;" to code examples

1 files changed, 12 insertions, 0 deletions

diff --git a/docs/structure-of-a-contract.rst b/docs/structure-of-a-contract.rst
index 79f78422..1036289a 100644
--- a/docs/structure-of-a-contract.rst
+++ b/docs/structure-of-a-contract.rst
@@ -20,6 +20,8 @@ State variables are values which are permanently stored in contract storage.
 
 ::
 
+  pragma solidity ^0.4.0;
+
   contract SimpleStorage {
       uint storedData; // State variable
       // ...
@@ -38,6 +40,8 @@ Functions are the executable units of code within a contract.
 
 ::
 
+  pragma solidity ^0.4.0;
+
   contract SimpleAuction {
       function bid() { // Function
           // ...
@@ -58,6 +62,8 @@ Function modifiers can be used to amend the semantics of functions in a declarat
 
 ::
 
+  pragma solidity ^0.4.0;
+
   contract Purchase {
       address public seller;
 
@@ -80,6 +86,8 @@ Events are convenience interfaces with the EVM logging facilities.
 
 ::
 
+  pragma solidity ^0.4.0;
+
   contract SimpleAuction {
       event HighestBidIncreased(address bidder, uint amount); // Event
 
@@ -102,6 +110,8 @@ Structs are custom defined types that can group several variables (see
 
 ::
 
+  pragma solidity ^0.4.0;
+
   contract Ballot {
       struct Voter { // Struct
           uint weight;
@@ -121,6 +131,8 @@ Enums can be used to create custom types with a finite set of values (see
 
 ::
 
+  pragma solidity ^0.4.0;
+
   contract Purchase {
       enum State { Created, Locked, Inactive } // Enum
   }