Endian.h

Go to the documentation of this file.

#if !defined(Endian_h)
#define Endian_h

#include "iString.h"

namespace Isis {
  enum ByteOrder {
    NoByteOrder = 0,
    Lsb,
    Msb
  };

  inline std::string ByteOrderName(Isis::ByteOrder byteOrder) {
    if(byteOrder == Isis::NoByteOrder) return "None";
    if(byteOrder == Isis::Lsb) return "Lsb";
    if(byteOrder == Isis::Msb) return "Msb";
    return "Error";
  }

  inline Isis::ByteOrder ByteOrderEnumeration(const std::string &order) {
    Isis::iString temp(order);
    temp = temp.UpCase();
    if(temp == "LSB") return Isis::Lsb;
    if(temp == "MSB") return Isis::Msb;
    return Isis::NoByteOrder;
  }

  inline bool IsLsb() {
    union {
      short a;
      char b[2];
    } test;

    test.a = 1;
    if(test.b[0] == 0) return false;
    return true;
  }

  inline bool IsMsb() {
    return !Isis::IsLsb();
  }

  inline bool IsLittleEndian() {
    return IsLsb();
  }

  inline bool IsBigEndian() {
    return !Isis::IsLsb();
  }
}

#endif