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Streaming.h
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142 lines (112 loc) · 3.47 KB
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/*
Streaming.h - Arduino library for supporting the << streaming operator
Copyright (c) 2010-2012 Mikal Hart. All rights 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
*/
/* 12-05-2015 GgR
added _FILL and _TIME classes from web page
*/
#ifndef ARDUINO_STREAMING
#define ARDUINO_STREAMING
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#define STREAMING_LIBRARY_VERSION 5.1
// Generic template
template<class T>
inline Print &operator <<(Print &stream, T arg)
{ stream.print(arg); return stream; }
struct _BASED
{
long val;
int base;
_BASED(long v, int b): val(v), base(b)
{}
};
#if ARDUINO >= 100
struct _BYTE_CODE
{
byte val;
_BYTE_CODE(byte v) : val(v)
{}
};
#define _BYTE(a) _BYTE_CODE(a)
inline Print &operator <<(Print &obj, const _BYTE_CODE &arg)
{ obj.write(arg.val); return obj; }
#else
#define _BYTE(a) _BASED(a, BYTE)
#endif
#define _HEX(a) _BASED(a, HEX)
#define _DEC(a) _BASED(a, DEC)
#define _OCT(a) _BASED(a, OCT)
#define _BIN(a) _BASED(a, BIN)
// Specialization for class _BASED
// Thanks to Arduino forum user Ben Combee who suggested this
// clever technique to allow for expressions like
// Serial << _HEX(a);
inline Print &operator <<(Print &obj, const _BASED &arg)
{ obj.print(arg.val, arg.base); return obj; }
#if ARDUINO >= 18
// Specialization for class _FLOAT
// Thanks to Michael Margolis for suggesting a way
// to accommodate Arduino 0018's floating point precision
// feature like this:
// Serial << _FLOAT(gps_latitude, 6); // 6 digits of precision
struct _FLOAT
{
float val;
int digits;
_FLOAT(double v, int d): val(v), digits(d)
{}
};
inline Print &operator <<(Print &obj, const _FLOAT &arg)
{ obj.print(arg.val, arg.digits); return obj; }
#endif
// Specialization for enum _EndLineCode
// Thanks to Arduino forum user Paul V. who suggested this
// clever technique to allow for expressions like
// Serial << "Hello!" << endl;
enum _EndLineCode { endl };
inline Print &operator <<(Print &obj, _EndLineCode arg)
{ obj.println(); return obj; }
// _Fill struct from web page
// from user Rob Tillaart
// Serial << _FILL('=', 20) << endl;
struct _FILL
{
char ch;
int len;
_FILL(char c, int l): ch(c), len(l)
{}
};
inline Print &operator <<(Print &obj, const _FILL &arg)
{ for (int i=0; i< arg.len; i++) obj.write(arg.ch); return obj; }
// _TIME struct from web page
// from user Rob Tillaart
// Serial << _TIME(1,2,3) << endl;
struct _TIME
{
uint8_t hour;
uint8_t minu;
uint8_t sec;
_TIME(uint8_t h, uint8_t m, uint8_t s): hour(h), minu(m), sec(s)
{}
};
inline Print &operator <<(Print &obj, const _TIME &arg)
{ obj.print(((arg.hour<10)?"0":"")); obj.print(int(arg.hour));
obj.print(((arg.minu<10)?":0":":")); obj.print(int(arg.minu));
obj.print(((arg.sec<10)?":0":":")); obj.print(int(arg.sec));
return obj; }
#endif