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@vasa-develop
Last active Sep 26, 2018
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pragma solidity ^0.4.19;
import "./Seriality.sol";
contract Serialize is Seriality{
string [] arr = ["string0", "string1", "string2", "string3", "string4"];
function getBytes(uint startindex, uint endindex) public view returns(bytes serialized){
require(endindex >= startindex);
if(endindex > (arr.length - 1)){
endindex = arr.length - 1;
}
//64 byte is needed for safe storage of a single string.
//((endindex - startindex) + 1) is the number of strings we want to pull out.
uint offset = 64*((endindex - startindex) + 1);
bytes memory buffer = new bytes(offset);
string memory out1 = new string(32);
for(uint i = startindex; i <= endindex; i++){
out1 = arr[i];
stringToBytes(offset, bytes(out1), buffer);
offset -= sizeOfString(out1);
}
return (buffer);
}
function getString(bytes buffer) public view returns(string string1, string string2){
//64 byte is needed for safe storage of a single string.
//In this example we are returning 2 strings
uint offset = 64*2;
buffer = new bytes(offset);
string1 = new string(32);
string2 = new string(32);
bytesToString(offset, buffer, bytes(string2));
offset -= sizeOfString(string2);
bytesToString(offset, buffer, bytes(string2));
offset -= sizeOfString(string2);
return(string1, string2);
}
}
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