src/ios_save.hh


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// -*- mode: c++; c-basic-offset: 2; -*-

#ifndef IOS_SAVE_HH
#define IOS_SAVE_HH

#include <ostream>

class ios_save {
public:
  ios_save(std::ostream& ostream)
    : ostream_(ostream), save_(nullptr) {
    save_.copyfmt(ostream);
  }

  ios_save(ios_save const& save)
    : ostream_(save.ostream_), save_(nullptr) {
    save_.copyfmt(save.save_);
  }

  ~ios_save() {
    ostream_.copyfmt(save_);
  }

  ios_save& operator=(ios_save const&) = delete;

private:
  std::ostream& ostream_;
  std::ios save_;
};

#endif  // IOS_SAVE_HH