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/* -*-C++-*-
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* binio.h - Binary stream I/O classes
* Copyright (C) 2002, 2003 Simon Peter <dn.tlp@gmx.net>
*/
#ifndef H_BINIO_BINIO
#define H_BINIO_BINIO
/***** Configuration *****/
// BINIO_ENABLE_STRING - Build std::string supporting methods
//
// Set to 1 to build std::string supporting methods. You need the STL to
// do this.
#define BINIO_ENABLE_STRING @ENABLE_STRING@
// BINIO_ENABLE_IOSTREAM - Build iostream wrapper classes
//
// Set to 1 to build the iostream wrapper classes. You need the standard
// C++ library to do this.
#define BINIO_ENABLE_IOSTREAM @ENABLE_IOSTREAM@
// BINIO_ISO_STDLIB - Build with ISO C++ standard library compliance
//
// Set to 1 to build for the ISO standard C++ library (i.e. namespaces, STL and
// templatized iostream). Set to 0 to build for the traditional C++ library.
#define BINIO_ISO_STDLIB @ISO_STDLIB@
// BINIO_WITH_MATH - Build with 'math.h' dependency to allow float conversions
//
// Set to 1 to also build routines that depend on the 'math.h' standard C header
// file (this sometimes also implies a 'libm' or 'libmath' dependency). These
// routines are needed in order to write IEEE-754 floating-point numbers on a
// system that doesn't support this format natively. For only reading these
// numbers, however, these routines are not needed. If set to 0, writing
// IEEE-754 numbers on an incompatible system will be disabled.
#define BINIO_WITH_MATH @WITH_MATH@
/***** Implementation *****/
// Disable annoying multiple inheritance compiler warning on MSVC6
#ifdef _MSC_VER
# pragma warning(disable: 4250)
#endif
#if BINIO_ENABLE_STRING
#include <string>
#endif
class binio
{
public:
typedef enum {
BigEndian = 1 << 0,
FloatIEEE = 1 << 1
} Flag;
typedef enum {
NoError = 0,
Fatal = 1 << 0,
Unsupported = 1 << 1,
NotOpen = 1 << 2,
Denied = 1 << 3,
NotFound = 1 << 4,
Eof = 1 << 5
} ErrorCode;
typedef enum { Set, Add, End } Offset;
typedef enum { Single, Double } FType;
typedef int Error;
binio();
virtual ~binio();
void setFlag(Flag f, bool set = true);
bool getFlag(Flag f);
Error error();
bool eof();
virtual void seek(long, Offset = Set) = 0;
virtual long pos() = 0;
protected:
typedef @TYPE_INT@ Int;
typedef @TYPE_FLOAT@ Float;
typedef unsigned char Byte; // has to be unsigned!
typedef int Flags;
Flags my_flags;
static const Flags system_flags;
Error err;
// Some math.h emulation functions...
#if !BINIO_WITH_MATH
Float pow(Float base, signed int exp);
Float ldexp(Float x, signed int exp) { return x * pow(2, exp); }
#endif
private:
static const Flags detect_system_flags();
};
class binistream: virtual public binio
{
public:
binistream();
virtual ~binistream();
Int readInt(unsigned int size);
Float readFloat(FType ft);
unsigned long readString(char *str, unsigned long amount);
unsigned long readString(char *str, unsigned long maxlen, const char delim);
#if BINIO_ENABLE_STRING
std::string readString(const char delim = '\0');
#endif
Int peekInt(unsigned int size);
Float peekFloat(FType ft);
bool ateof();
void ignore(unsigned long amount = 1);
protected:
virtual Byte getByte() = 0;
private:
Float ieee_single2float(Byte *data);
Float ieee_double2float(Byte *data);
};
class binostream: virtual public binio
{
public:
binostream();
virtual ~binostream();
void writeInt(Int val, unsigned int size);
void writeFloat(Float f, FType ft);
unsigned long writeString(const char *str, unsigned long amount = 0);
#if BINIO_ENABLE_STRING
unsigned long writeString(const std::string &str);
#endif
protected:
virtual void putByte(Byte) = 0;
private:
void float2ieee_single(Float f, Byte *data);
void float2ieee_double(Float f, Byte *data);
};
class binstream: public binistream, public binostream
{
public:
binstream();
virtual ~binstream();
};
#endif
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