I've stumbled across this issue while trying to build a GPS receiver around an ATTiny
http://code.google.com/p/arduino-tiny/issues/detail?id=49
Print.h from the Arduino 1.01 environment and the different Tiny cores differ.
From Arduino:
/*
Print.h - Base class that provides print() and println()
Copyright (c) 2008 David A. Mellis. All right reserved.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef Print_h
#define Print_h
#include <inttypes.h>
#include <stdio.h> // for size_t
#include "WString.h"
#include "Printable.h"
#define DEC 10
#define HEX 16
#define OCT 8
#define BIN 2
class Print
{
private:
int write_error;
size_t printNumber(unsigned long, uint8_t);
size_t printFloat(double, uint8_t);
protected:
void setWriteError(int err = 1) { write_error = err; }
public:
Print() : write_error(0) {}
int getWriteError() { return write_error; }
void clearWriteError() { setWriteError(0); }
virtual size_t write(uint8_t) = 0;
size_t write(const char *str) { return write((const uint8_t *)str, strlen(str)); }
virtual size_t write(const uint8_t *buffer, size_t size);
size_t print(const __FlashStringHelper *);
size_t print(const String &);
size_t print(const char[]);
size_t print(char);
size_t print(unsigned char, int = DEC);
size_t print(int, int = DEC);
size_t print(unsigned int, int = DEC);
size_t print(long, int = DEC);
size_t print(unsigned long, int = DEC);
size_t print(double, int = 2);
size_t print(const Printable&);
size_t println(const __FlashStringHelper *);
size_t println(const String &s);
size_t println(const char[]);
size_t println(char);
size_t println(unsigned char, int = DEC);
size_t println(int, int = DEC);
size_t println(unsigned int, int = DEC);
size_t println(long, int = DEC);
size_t println(unsigned long, int = DEC);
size_t println(double, int = 2);
size_t println(const Printable&);
size_t println(void);
};
#endif
From tiny:
/*
Print.h - Base class that provides print() and println()
Copyright (c) 2008 David A. Mellis. All right reserved.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Modified 20-11-2010 by B.Cook ...
http://arduiniana.org/libraries/flash/
Printable support thanks to Mikal Hart
*/
#ifndef Print_h
#define Print_h
#include <inttypes.h>
#include <stdio.h> // for size_t
#include <avr/pgmspace.h>
#include "WString.h"
#define DEC 10
#define HEX 16
#define OCT 8
#define BIN 2
#define BYTE 0
#define ARDUINO_CORE_PRINTABLE_SUPPORT
class Print;
/* Printable...*/
class _Printable
{
public:
virtual void print(Print &stream) const = 0;
};
/* ...Printable */
typedef struct
{
char c;
}
fstr_t;
/* rmv: Use the macro below in preparation for the next Arduino release.
# define FSTR(s) ((fstr_t*)PSTR(s))
*/
# define F(s) ((fstr_t*)PSTR(s))
class Print
{
private:
void printNumber(unsigned long, uint8_t);
void printFloat(double, uint8_t);
public:
virtual void write(uint8_t) = 0;
virtual void write(const char *str);
virtual void write(const uint8_t *buffer, size_t size);
void print(const String &);
void print(const char[]);
void print(char, int = BYTE);
void print(unsigned char, int = BYTE);
void print(int, int = DEC);
void print(unsigned int, int = DEC);
void print(long, int = DEC);
void print(unsigned long, int = DEC);
void print(double, int = 2);
int print( fstr_t* );
void println(const String &s);
void println(const char[]);
void println(char, int = BYTE);
void println(unsigned char, int = BYTE);
void println(int, int = DEC);
void println(unsigned int, int = DEC);
void println(long, int = DEC);
void println(unsigned long, int = DEC);
void println(double, int = 2);
int println( fstr_t* );
int println(void);
public:
/* Printable...*/
void println(const _Printable &obj)
{ obj.print(*this); println(); }
void print(const _Printable &obj)
{ obj.print(*this); };
/* ...Printable */
};
#endif
The version from Tiny seems to be newer (edit 2011) yet incompatible... any suggestions?
basically, I want the tiny to handle all the GPS stuff and query it through I²C on the GPS info