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94 lines
2.9 KiB
94 lines
2.9 KiB
/*
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Print.h - Base class that provides print() and println()
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Copyright (c) 2008 David A. Mellis. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef Print_h
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#define Print_h
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#include <inttypes.h>
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#include <stdio.h> // for size_t
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#include "WString.h"
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#include "Printable.h"
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#define DEC 10
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#define HEX 16
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#define OCT 8
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#ifdef BIN // Prevent warnings if BIN is previously defined in "iotnx4.h" or similar
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#undef BIN
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#endif
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#define BIN 2
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class Print
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{
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private:
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int write_error;
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size_t printNumber(unsigned long, uint8_t);
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size_t printFloat(double, uint8_t);
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protected:
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void setWriteError(int err = 1) { write_error = err; }
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public:
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Print() : write_error(0) {}
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int getWriteError() { return write_error; }
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void clearWriteError() { setWriteError(0); }
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virtual size_t write(uint8_t) = 0;
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size_t write(const char *str) {
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if (str == NULL) return 0;
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return write((const uint8_t *)str, strlen(str));
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}
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virtual size_t write(const uint8_t *buffer, size_t size);
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size_t write(const char *buffer, size_t size) {
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return write((const uint8_t *)buffer, size);
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}
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// default to zero, meaning "a single write may block"
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// should be overriden by subclasses with buffering
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virtual int availableForWrite() { return 0; }
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size_t print(const __FlashStringHelper *);
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size_t print(const String &);
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size_t print(const char[]);
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size_t print(char);
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size_t print(unsigned char, int = DEC);
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size_t print(int, int = DEC);
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size_t print(unsigned int, int = DEC);
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size_t print(long, int = DEC);
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size_t print(unsigned long, int = DEC);
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size_t print(double, int = 2);
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size_t print(const Printable&);
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size_t println(const __FlashStringHelper *);
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size_t println(const String &s);
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size_t println(const char[]);
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size_t println(char);
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size_t println(unsigned char, int = DEC);
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size_t println(int, int = DEC);
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size_t println(unsigned int, int = DEC);
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size_t println(long, int = DEC);
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size_t println(unsigned long, int = DEC);
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size_t println(double, int = 2);
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size_t println(const Printable&);
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size_t println(void);
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virtual void flush() { /* Empty implementation for backward compatibility */ }
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};
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#endif
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