Alignment/Geners/interface/streamposIO.hh - master - githubmirror/cmssw

Alignment/Geners/interface/streamposIO.hh

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08 май 2019, 15:16

08 май 2019, 15:167614b05

//=========================================================================
// streamposIO.hh
//
// Specialize read_pod and write_pod so that they also
// work with std::streampos.
//
// The code for storing the stream offset is necessarily
// going to be implementation-dependent. The C++ standard
// does not specify std::streampos with enough detail.
//
// I. Volobouev
// March 2011
//=========================================================================

#ifndef GENERS_STREAMPOSIO_HH_
#define GENERS_STREAMPOSIO_HH_

#include "Alignment/Geners/interface/binaryIO.hh"

namespace gs {
  template <>
  inline void write_pod<std::streampos>(std::ostream &of, const std::streampos &s) {
    std::streamoff off(s);
    long long loc = off;
    write_pod(of, loc);
  }

  template <>
  inline void read_pod<std::streampos>(std::istream &in, std::streampos *ps) {
    assert(ps);
    long long loc = 0LL;
    read_pod(in, &loc);
    std::streamoff off(loc);
    *ps = std::streampos(off);
  }

  template <>
  inline void write_pod_array<std::streampos>(std::ostream &of, const std::streampos *pod, const unsigned long len) {
    if (len) {
      assert(pod);
      for (unsigned long i = 0; i < len; ++i)
        write_pod(of, pod[i]);
    }
  }

  template <>
  inline void read_pod_array<std::streampos>(std::istream &in, std::streampos *pod, const unsigned long len) {
    if (len) {
      assert(pod);
      for (unsigned long i = 0; i < len; ++i)
        read_pod(in, pod + i);
    }
  }
}  // namespace gs

#endif  // GENERS_STREAMPOSIO_HH_