documentation: adjustments to not use the "var" keyword

docs/contracts.rst

@@ -1328,9 +1328,9 @@ custom types without the overhead of external function calls:
         using BigInt for BigInt.bigint;
 
         function f() public pure {
-            var x = BigInt.fromUint(7);
-            var y = BigInt.fromUint(uint(-1));
-            var z = x.add(y);
+            BigInt.bigint memory x = BigInt.fromUint(7);
+            BigInt.bigint memory y = BigInt.fromUint(uint(-1));
+            BigInt.bigint memory z = x.add(y);
         }
     }
 

docs/frequently-asked-questions.rst

@@ -136,14 +136,9 @@ See `struct_and_for_loop_tester.sol <https://github.com/fivedogit/solidity-baby-
 How do for loops work?
 ======================
 
-Very similar to JavaScript. There is one point to watch out for, though:
+Very similar to JavaScript. Such as the following example:
 
-If you use ``for (var i = 0; i < a.length; i ++) { a[i] = i; }``, then
-the type of ``i`` will be inferred only from ``0``, whose type is ``uint8``.
-This means that if ``a`` has more than ``255`` elements, your loop will
-not terminate because ``i`` can only hold values up to ``255``.
-
-Better use ``for (uint i = 0; i < a.length...``
+``for (uint i = 0; i < a.length; i ++) { a[i] = i; }``
 
 See `struct_and_for_loop_tester.sol <https://github.com/fivedogit/solidity-baby-steps/blob/master/contracts/65_struct_and_for_loop_tester.sol>`_.
 

docs/miscellaneous.rst

@@ -157,7 +157,7 @@ These steps are applied to each basic block and the newly generated code is used
 
 ::
 
-    var x = 7;
+    uint x = 7;
     data[7] = 9;
     if (data[x] != x + 2)
       return 2;

docs/security-considerations.rst

@@ -103,7 +103,7 @@ outlined further below:
         mapping(address => uint) shares;
         /// Withdraw your share.
         function withdraw() public {
-            var share = shares[msg.sender];
+            uint share = shares[msg.sender];
             shares[msg.sender] = 0;
             msg.sender.transfer(share);
         }
@@ -224,7 +224,6 @@ If your wallet had checked ``msg.sender`` for authorization, it would get the ad
 Minor Details
 =============
 
-- In ``for (var i = 0; i < arrayName.length; i++) { ... }``, the type of ``i`` will be ``uint8``, because this is the smallest type that is required to hold the value ``0``. If the array has more than 255 elements, the loop will not terminate.
 - Types that do not occupy the full 32 bytes might contain "dirty higher order bits".
   This is especially important if you access ``msg.data`` - it poses a malleability risk:
   You can craft transactions that call a function ``f(uint8 x)`` with a raw byte argument

docs/types.rst

@@ -7,10 +7,8 @@ Types
 *****
 
 Solidity is a statically typed language, which means that the type of each
-variable (state and local) needs to be specified (or at least known -
-see :ref:`type-deduction` below) at
-compile-time. Solidity provides several elementary types which can be combined
-to form complex types.
+variable (state and local) needs to be specified.
+Solidity provides several elementary types which can be combined to form complex types.
 
 In addition, types can interact with each other in expressions containing
 operators. For a quick reference of the various operators, see :ref:`order`.
@@ -548,7 +546,7 @@ memory-stored reference type do not create a copy.
         // the data location of memoryArray is memory
         function f(uint[] memoryArray) public {
             x = memoryArray; // works, copies the whole array to storage
-            var y = x; // works, assigns a pointer, data location of y is storage
+            uint[] storage y = x; // works, assigns a pointer, data location of y is storage
             y[7]; // fine, returns the 8th element
             y.length = 2; // fine, modifies x through y
             delete x; // fine, clears the array, also modifies y
@@ -986,26 +984,3 @@ converted to a matching size. This makes alignment and padding explicit::
     bytes32(uint256(x)); // pad on the left
     bytes32(bytes2(x)); // pad on the right
 
-.. index:: ! type;deduction, ! var
-
-.. _type-deduction:
-
-Type Deduction
-==============
-
-For convenience, it is not always necessary to explicitly specify the type of a
-variable, the compiler automatically infers it from the type of the first
-expression that is assigned to the variable::
-
-    uint24 x = 0x123;
-    var y = x;
-
-Here, the type of ``y`` will be ``uint24``. Using ``var`` is not possible for function
-parameters or return parameters.
-
-.. warning::
-    The type is only deduced from the first assignment, so
-    the loop in the following snippet is infinite, as ``i`` will have the type
-    ``uint8`` and the highest value of this type is smaller than ``2000``.
-    ``for (var i = 0; i < 2000; i++) { ... }``
-