ListUtilsIO.h

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//                   OpenMS -- Open-Source Mass Spectrometry
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// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2018.
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// $Maintainer: Timo Sachsenberg $
// $Authors: Stephan Aiche $
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#pragma once

#include <OpenMS/DATASTRUCTURES/String.h>

#include <iomanip>
#include <iterator>
#include <ostream>
#include <vector>

// This header collects io relevant parts of ListUtils. Separating the from the
// rest avoids inclusion of ostream headers in a lot of classes.

namespace OpenMS
{
  template <typename T>
  inline std::ostream& operator<<(std::ostream& os, const std::vector<T>& v)
  {
    // handle precision settings
    const std::streamsize prec_save = os.precision();
    os.precision(writtenDigits(T()));

    os << "[";

    if (!v.empty())
    {
      std::copy(v.begin(), v.end() - 1, std::ostream_iterator<T>(os, ", "));
      os << v.back();
    }

    os << "]";
    // set precision settings back to original values
    os.precision(prec_save);
    return os;
  }

  template <typename TString>
  inline std::vector<String>& operator<<(std::vector<String>& sl, const TString& string)
  {
    sl.push_back(string);
    return sl;
  }

}