bifstream.cc

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//   File description
 
#include "bifstream.h"
#include <fstream>
#include <stdexcept>
 
void bifstream::seek(long spos, Offset offs) {
  if (!in) {
    err = NotOpen;
    return;
  }
 
  switch (offs) {
    case Set:
      this->seekg(spos, ios::beg);
      break;
    case Add:
      this->seekg(spos, ios::cur);
      break;
    case End:
      this->seekg(spos, ios::end);
      break;
  }
}
 
streampos bifstream::pos() {
  if (!in) {
    err = NotOpen;
    return 0;
  }
  return streampos(this->tellg());
}
 
bifstream::Byte bifstream::getByte() {
  if (this->good()) {
    int iread;
    iread = this->get();
    if (iread == EOF) err |= Eof;
    return (Byte)iread;
  } else {
    err |= NotOpen;
    throw runtime_error("Reading from binary file failed");
    return 0;
  }
}
 
/* Overloaded input operators */
bifstream& operator>>(bifstream& bif, double& n) {
  n = (double)bif.readFloat(binio::Double);
  return (bif);
}
 
bifstream& operator>>(bifstream& bif, float& n) {
  n = (float)bif.readFloat(binio::Double);
  return (bif);
}
 
bifstream& operator>>(bifstream& bif, std::int64_t& n) {
  n = static_cast<std::int64_t>(bif.readInt(4));
  return (bif);
}
 
bifstream& operator>>(bifstream& bif, int& n) {
  n = (int)bif.readInt(4);
  return (bif);
}