diff options
Diffstat (limited to 'docs/contracts.rst')
| -rw-r--r-- | docs/contracts.rst | 36 |
1 files changed, 10 insertions, 26 deletions
diff --git a/docs/contracts.rst b/docs/contracts.rst index 845fd973..56d651ee 100644 --- a/docs/contracts.rst +++ b/docs/contracts.rst @@ -301,10 +301,10 @@ inheritable properties of contracts and may be overridden by derived contracts. :: - pragma solidity ^0.4.22; + pragma solidity >0.4.24; contract owned { - function owned() public { owner = msg.sender; } + constructor() public { owner = msg.sender; } address owner; // This contract only defines a modifier but does not use @@ -346,7 +346,7 @@ inheritable properties of contracts and may be overridden by derived contracts. mapping (address => bool) registeredAddresses; uint price; - function Register(uint initialPrice) public { price = initialPrice; } + constructor(uint initialPrice) public { price = initialPrice; } // It is important to also provide the // `payable` keyword here, otherwise the function will @@ -990,7 +990,7 @@ default constructor: ``contructor() public {}``. :: - pragma solidity ^0.4.22; + pragma solidity >0.4.24; contract A { uint public a; @@ -1006,24 +1006,8 @@ default constructor: ``contructor() public {}``. A constructor set as ``internal`` causes the contract to be marked as :ref:`abstract <abstract-contract>`. -.. note :: - Prior to version 0.4.22, constructors were defined as functions with the same name as the contract. This syntax is now deprecated. - -:: - - pragma solidity ^0.4.11; - - contract A { - uint public a; - - function A(uint _a) internal { - a = _a; - } - } - - contract B is A(1) { - function B() public {} - } +.. warning :: + Prior to version 0.4.22, constructors were defined as functions with the same name as the contract. This syntax was deprecated and is not allowed anymore in version 0.5.0. .. index:: ! base;constructor @@ -1344,9 +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); } } @@ -1402,7 +1386,7 @@ Using For ********* The directive ``using A for B;`` can be used to attach library -functions (from the library ``A``) to any type (``B``). +functions (from the library ``A``) to any type (``B``). These functions will receive the object they are called on as their first parameter (like the ``self`` variable in Python). |