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#!/usr/bin/env bash

set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR EXIT

script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

usage() {
  cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]

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/*
   Kraken-based ETH/XBT price ticker

   This contract keeps in storage an updated ETH/XBT price,
   which is updated every ~60 seconds.
*/

pragma solidity ^0.4.0;
import "oraclizeLib.sol";

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// <ORACLIZE_API>
/*
Copyright (c) 2015-2016 Oraclize SRL
Copyright (c) 2016 Oraclize LTD



Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights

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Data format: binary. Default file extension: '.tlsn'

Contents

Field description (size in bytes)	code in Python version
Header (29)	'tlsnotary notarization file\n\n'

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//
// Big number library in Solidity for the purpose of implementing modexp.
//
// Should have a similar API to https://github.com/ethereum/EIPs/issues/101
//
// Internally bignumbers are represented as an uint array of 128 bit values.
//
// NOTE: it assumes usage with "small" (<256bit) exponents (such as in RSA)
//

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//
// In Solidity, a mapping is like a hashmap and works with `string` like this:
//   mapping (string => uint) a; 
//
// However it doesn't support accessors where string is a key:
//   mapping (string => uint) public a;
//
// "Internal compiler error: Accessors for mapping with dynamically-sized keys not yet implemented."
//
// An accessor returns uint when called as `a(string)`.

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contract Creator {
    function newContract(bytes data) public returns (address) {
        address theNewContract;
        uint s = data.length;

        assembly {
            calldatacopy(mload(0x40), 68, s)
            theNewContract := create(callvalue, mload(0x40), s)
        }

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/**
 * Base contract that all upgradeable contracts should use.
 * 
 * Contracts implementing this interface are all called using delegatecall from
 * a dispatcher. As a result, the _sizes and _dest variables are shared with the
 * dispatcher contract, which allows the called contract to update these at will.
 * 
 * _sizes is a map of function signatures to return value sizes. Due to EVM
 * limitations, these need to be populated by the target contract, so the
 * dispatcher knows how many bytes of data to return from called functions.