Remove obsolete 'std' directory

Changelog.md

@@ -11,6 +11,7 @@ Breaking Changes:
  * Type Checker: Disallow arithmetic operations for Boolean variables.
  * Disallow trailing dots that are not followed by a number.
  * Remove assembly instructions ``sha3`` and ``suicide``
+ * Remove obsolete ``std`` directory from the Solidity repository. This means accessing ``https://github.com/ethereum/soldity/blob/develop/std/*.sol`` (or ``https://github.com/ethereum/solidity/std/*.sol`` in Remix) will not be possible.
 
 Language Features:
  * General: Allow appending ``calldata`` keyword to types, to explicitly specify data location for arguments of external functions.

std/StandardToken.sol

@@ -1,59 +0,0 @@
-pragma solidity ^0.4.22;
-
-import "./Token.sol";
-
-contract StandardToken is Token {
-	uint256 supply;
-	mapping (address => uint256) balance;
-	mapping (address =>
-		mapping (address => uint256)) m_allowance;
-
-	constructor(address _initialOwner, uint256 _supply) public {
-		supply = _supply;
-		balance[_initialOwner] = _supply;
-	}
-
-	function balanceOf(address _account) view public returns (uint) {
-		return balance[_account];
-	}
-
-	function totalSupply() view public returns (uint) {
-		return supply;
-	}
-
-	function transfer(address _to, uint256 _value) public returns (bool success) {
-		return doTransfer(msg.sender, _to, _value);
-	}
-
-	function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
-		if (m_allowance[_from][msg.sender] >= _value) {
-			if (doTransfer(_from, _to, _value)) {
-				m_allowance[_from][msg.sender] -= _value;
-			}
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	function doTransfer(address _from, address _to, uint _value) internal returns (bool success) {
-		if (balance[_from] >= _value && balance[_to] + _value >= balance[_to]) {
-			balance[_from] -= _value;
-			balance[_to] += _value;
-			emit Transfer(_from, _to, _value);
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	function approve(address _spender, uint256 _value) public returns (bool success) {
-		m_allowance[msg.sender][_spender] = _value;
-		emit Approval(msg.sender, _spender, _value);
-		return true;
-	}
-
-	function allowance(address _owner, address _spender) view public returns (uint256) {
-		return m_allowance[_owner][_spender];
-	}
-}

std/Token.sol

@@ -1,13 +0,0 @@
-pragma solidity ^0.4.0;
-
-contract Token {
-	event Transfer(address indexed _from, address indexed _to, uint256 _value);
-	event Approval(address indexed _owner, address indexed _spender, uint256 _value);
-
-	function totalSupply() view public returns (uint256 supply);
-	function balanceOf(address _owner) view public returns (uint256 balance);
-	function transfer(address _to, uint256 _value) public returns (bool success);
-	function transferFrom(address _from, address _to, uint256 _value) public returns (bool success);
-	function approve(address _spender, uint256 _value) public returns (bool success);
-	function allowance(address _owner, address _spender) view public returns (uint256 remaining);
-}

std/mortal.sol

@@ -1,10 +0,0 @@
-pragma solidity ^0.4.0;
-
-import "./owned.sol";
-
-contract mortal is owned {
-    function kill() public {
-        if (msg.sender == owner)
-            selfdestruct(owner);
-    }
-}

std/owned.sol

@@ -1,15 +0,0 @@
-pragma solidity ^0.4.22;
-
-contract owned {
-    address owner;
-
-    modifier onlyowner() {
-        if (msg.sender == owner) {
-            _;
-        }
-    }
-
-    constructor() public {
-        owner = msg.sender;
-    }
-}

std/std.sol

@@ -1,6 +0,0 @@
-pragma solidity ^0.4.0;
-
-import "./owned.sol";
-import "./mortal.sol";
-import "./Token.sol";
-import "./StandardToken.sol";

test/cmdlineTests.sh

@@ -37,10 +37,6 @@ FULLARGS="--optimize --ignore-missing --combined-json abi,asm,ast,bin,bin-runtim
 echo "Checking that the bug list is up to date..."
 "$REPO_ROOT"/scripts/update_bugs_by_version.py
 
-echo "Checking that StandardToken.sol, owned.sol and mortal.sol produce bytecode..."
-output=$("$REPO_ROOT"/build/solc/solc --bin "$REPO_ROOT"/std/*.sol 2>/dev/null | grep "ffff" | wc -l)
-test "${output//[[:blank:]]/}" = "3"
-
 function printTask() { echo "$(tput bold)$(tput setaf 2)$1$(tput sgr0)"; }
 
 function printError() { echo "$(tput setaf 1)$1$(tput sgr0)"; }
@@ -113,14 +109,6 @@ do
 done
 )
 
-printTask "Compiling all files in std and examples..."
-
-for f in "$REPO_ROOT"/std/*.sol
-do
-    echo "$f"
-    compileWithoutWarning "$f"
-done
-
 printTask "Compiling all examples from the documentation..."
 TMPDIR=$(mktemp -d)
 (