Print.h

/*
  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 <CoreIO.h>
#include <cstring>
#include <cstdarg>

class Print
{
public:
	Print() noexcept {}
	virtual ~Print() {}

	virtual size_t write(uint8_t) noexcept = 0;
	virtual size_t write(const uint8_t *buffer, size_t size) noexcept;		// this has a default implementation, but can be overridden for efficiency

	size_t write(const char *str) noexcept
	{
		return (str == NULL) ? 0 : write((const uint8_t *)str, strlen(str));
	}

	size_t write(const char *buffer, size_t size) noexcept
	{
		return write((const uint8_t *)buffer, size);
	}

	size_t print(const char *str) noexcept
	{
		return write(str);
	}

	int printf(const char *fmt, ...) noexcept __attribute__ ((format (printf, 2, 3)));
	int printf(const char *fmt, va_list vargs) noexcept;
};

#endif