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Ondrej Lycka
266
RPi_rflink/arduino/Inspiration/Print.cpp
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266
RPi_rflink/arduino/Inspiration/Print.cpp
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/*
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Print.cpp - 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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Modified 23 November 2006 by David A. Mellis
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Modified 03 August 2015 by Chuck Todd
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include "Arduino.h"
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#include "Print.h"
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// Public Methods //////////////////////////////////////////////////////////////
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/* default implementation: may be overridden */
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size_t Print::write(const uint8_t *buffer, size_t size)
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{
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size_t n = 0;
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while (size--) {
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if (write(*buffer++)) n++;
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else break;
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}
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return n;
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}
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size_t Print::print(const __FlashStringHelper *ifsh)
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{
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PGM_P p = reinterpret_cast<PGM_P>(ifsh);
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size_t n = 0;
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while (1) {
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unsigned char c = pgm_read_byte(p++);
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if (c == 0) break;
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if (write(c)) n++;
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else break;
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}
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return n;
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}
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size_t Print::print(const String &s)
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{
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return write(s.c_str(), s.length());
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}
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size_t Print::print(const char str[])
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{
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return write(str);
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}
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size_t Print::print(char c)
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{
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return write(c);
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}
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size_t Print::print(unsigned char b, int base)
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{
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return print((unsigned long) b, base);
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}
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size_t Print::print(int n, int base)
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{
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return print((long) n, base);
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}
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size_t Print::print(unsigned int n, int base)
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{
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return print((unsigned long) n, base);
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}
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size_t Print::print(long n, int base)
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{
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if (base == 0) {
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return write(n);
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} else if (base == 10) {
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if (n < 0) {
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int t = print('-');
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n = -n;
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return printNumber(n, 10) + t;
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}
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return printNumber(n, 10);
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} else {
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return printNumber(n, base);
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}
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}
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size_t Print::print(unsigned long n, int base)
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{
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if (base == 0) return write(n);
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else return printNumber(n, base);
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}
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size_t Print::print(double n, int digits)
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{
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return printFloat(n, digits);
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}
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size_t Print::println(const __FlashStringHelper *ifsh)
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{
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size_t n = print(ifsh);
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n += println();
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return n;
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}
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size_t Print::print(const Printable& x)
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{
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return x.printTo(*this);
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}
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size_t Print::println(void)
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{
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return write("\r\n");
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}
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size_t Print::println(const String &s)
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{
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size_t n = print(s);
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n += println();
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return n;
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}
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size_t Print::println(const char c[])
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{
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size_t n = print(c);
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n += println();
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return n;
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}
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size_t Print::println(char c)
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{
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size_t n = print(c);
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n += println();
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return n;
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}
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size_t Print::println(unsigned char b, int base)
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{
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size_t n = print(b, base);
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n += println();
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return n;
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}
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size_t Print::println(int num, int base)
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{
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size_t n = print(num, base);
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n += println();
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return n;
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}
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size_t Print::println(unsigned int num, int base)
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{
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size_t n = print(num, base);
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n += println();
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return n;
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}
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size_t Print::println(long num, int base)
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{
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size_t n = print(num, base);
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n += println();
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return n;
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}
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size_t Print::println(unsigned long num, int base)
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{
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size_t n = print(num, base);
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n += println();
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return n;
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}
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size_t Print::println(double num, int digits)
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{
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size_t n = print(num, digits);
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n += println();
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return n;
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}
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size_t Print::println(const Printable& x)
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{
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size_t n = print(x);
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n += println();
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return n;
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}
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// Private Methods /////////////////////////////////////////////////////////////
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size_t Print::printNumber(unsigned long n, uint8_t base)
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{
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char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
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char *str = &buf[sizeof(buf) - 1];
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*str = '\0';
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// prevent crash if called with base == 1
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if (base < 2) base = 10;
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do {
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char c = n % base;
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n /= base;
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*--str = c < 10 ? c + '0' : c + 'A' - 10;
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} while(n);
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return write(str);
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}
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size_t Print::printFloat(double number, uint8_t digits)
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{
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size_t n = 0;
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if (isnan(number)) return print("nan");
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if (isinf(number)) return print("inf");
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if (number > 4294967040.0) return print ("ovf"); // constant determined empirically
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if (number <-4294967040.0) return print ("ovf"); // constant determined empirically
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// Handle negative numbers
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if (number < 0.0)
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{
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n += print('-');
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number = -number;
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}
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// Round correctly so that print(1.999, 2) prints as "2.00"
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double rounding = 0.5;
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for (uint8_t i=0; i<digits; ++i)
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rounding /= 10.0;
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number += rounding;
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// Extract the integer part of the number and print it
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unsigned long int_part = (unsigned long)number;
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double remainder = number - (double)int_part;
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n += print(int_part);
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// Print the decimal point, but only if there are digits beyond
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if (digits > 0) {
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n += print('.');
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}
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// Extract digits from the remainder one at a time
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while (digits-- > 0)
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{
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remainder *= 10.0;
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unsigned int toPrint = (unsigned int)(remainder);
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n += print(toPrint);
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remainder -= toPrint;
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}
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return n;
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}
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84
RPi_rflink/arduino/Inspiration/Print.h
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84
RPi_rflink/arduino/Inspiration/Print.h
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@@ -0,0 +1,84 @@
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/*
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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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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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};
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#endif
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36
RPi_rflink/arduino/Inspiration/Printable.h
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36
RPi_rflink/arduino/Inspiration/Printable.h
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@@ -0,0 +1,36 @@
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/*
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Printable.h - Interface class that allows printing of complex types
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Copyright (c) 2011 Adrian McEwen. 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
|
||||
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 Printable_h
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#define Printable_h
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#include <stdlib.h>
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class Print;
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/** The Printable class provides a way for new classes to allow themselves to be printed.
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By deriving from Printable and implementing the printTo method, it will then be possible
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for users to print out instances of this class by passing them into the usual
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Print::print and Print::println methods.
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*/
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class Printable
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{
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public:
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virtual size_t printTo(Print& p) const = 0;
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};
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#endif
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