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See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with solidity. If not, see \n//\n// (c) 2017 netvote contributors.\n//------------------------------------------------------------------------------\n\npragma solidity ^0.4.17;\n\n\n/**\n * @title NoRemovalBytes32Set\n * @dev iterable map of bytes32 that has no way to remove (cheaper bookkeeping)\n */\nlibrary NoRemovalBytes32Set {\n\n struct SetData {\n mapping(bytes32 => bool) entryExists;\n bytes32[] entries;\n }\n\n function getAt(SetData storage self, uint256 index) public constant returns (bytes32) {\n return self.entries[index];\n }\n\n function contains(SetData storage self, bytes32 b) public constant returns (bool) {\n return self.entryExists[b];\n }\n\n function size(SetData storage self) public constant returns (uint256) {\n return self.entries.length;\n }\n\n function put(SetData storage self, bytes32 b) public {\n if (!self.entryExists[b]) {\n self.entryExists[b] = true;\n self.entries.push(b);\n }\n }\n}", "sourcePath": 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