Revision 0:4f62090ee72f, committed 2019-07-29

Comitter:

DVSProductions

Date:

Mon Jul 29 03:49:50 2019 +0000

Commit message:

First Commit

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Print.cpp	Mon Jul 29 03:49:50 2019 +0000
@@ -0,0 +1,230 @@
+/*
+ Print.cpp - 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 23 November 2006 by David A. Mellis
+ Modified 03 August 2015 by Chuck Todd
+ */
+
+#include <string>
+#include <cmath>
+
+#include "Print.h"
+
+// Public Methods //////////////////////////////////////////////////////////////
+
+/* default implementation: may be overridden */
+size_t Print::write(const uint8_t *buffer, size_t size)
+{
+  size_t n = 0;
+  while (size--) {
+    if (write(*buffer++)) n++;
+    else break;
+  }
+  return n;
+}
+
+size_t Print::print(const std::string &s)
+{
+  return write(s.c_str(), s.length());
+}
+
+size_t Print::print(const char str[])
+{
+  return write(str);
+}
+
+size_t Print::print(char c)
+{
+  return write(c);
+}
+
+size_t Print::print(unsigned char b, int base)
+{
+  return print((unsigned long) b, base);
+}
+
+size_t Print::print(int n, int base)
+{
+  return print((long) n, base);
+}
+
+size_t Print::print(unsigned int n, int base)
+{
+  return print((unsigned long) n, base);
+}
+
+size_t Print::print(long n, int base)
+{
+  if (base == 0) {
+    return write(n);
+  } else if (base == 10) {
+    if (n < 0) {
+      int t = print('-');
+      n = -n;
+      return printNumber(n, 10) + t;
+    }
+    return printNumber(n, 10);
+  } else {
+    return printNumber(n, base);
+  }
+}
+
+size_t Print::print(unsigned long n, int base)
+{
+  if (base == 0) return write(n);
+  else return printNumber(n, base);
+}
+
+size_t Print::print(double n, int digits)
+{
+  return printFloat(n, digits);
+}
+size_t Print::println(void)
+{
+  return write("\r\n");
+}
+
+size_t Print::println(const std::string &s)
+{
+  size_t n = print(s);
+  n += println();
+  return n;
+}
+
+size_t Print::println(const char c[])
+{
+  size_t n = print(c);
+  n += println();
+  return n;
+}
+
+size_t Print::println(char c)
+{
+  size_t n = print(c);
+  n += println();
+  return n;
+}
+
+size_t Print::println(unsigned char b, int base)
+{
+  size_t n = print(b, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(int num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(unsigned int num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(unsigned long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t Print::println(double num, int digits)
+{
+  size_t n = print(num, digits);
+  n += println();
+  return n;
+}
+
+// Private Methods /////////////////////////////////////////////////////////////
+
+size_t Print::printNumber(unsigned long n, uint8_t base)
+{
+  char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
+  char *str = &buf[sizeof(buf) - 1];
+
+  *str = '\0';
+
+  // prevent crash if called with base == 1
+  if (base < 2) base = 10;
+
+  do {
+    char c = n % base;
+    n /= base;
+
+    *--str = c < 10 ? c + '0' : c + 'A' - 10;
+  } while(n);
+
+  return write(str);
+}
+
+size_t Print::printFloat(double number, uint8_t digits) 
+{ 
+  size_t n = 0;
+  
+  if (isnan(number)) return print("nan");
+  if (isinf(number)) return print("inf");
+  if (number > 4294967040.0) return print ("ovf");  // constant determined empirically
+  if (number <-4294967040.0) return print ("ovf");  // constant determined empirically
+  
+  // Handle negative numbers
+  if (number < 0.0)
+  {
+     n += print('-');
+     number = -number;
+  }
+
+  // Round correctly so that print(1.999, 2) prints as "2.00"
+  double rounding = 0.5;
+  for (uint8_t i=0; i<digits; ++i)
+    rounding /= 10.0;
+  
+  number += rounding;
+
+  // Extract the integer part of the number and print it
+  unsigned long int_part = (unsigned long)number;
+  double remainder = number - (double)int_part;
+  n += print(int_part);
+
+  // Print the decimal point, but only if there are digits beyond
+  if (digits > 0) {
+    n += print('.'); 
+  }
+
+  // Extract digits from the remainder one at a time
+  while (digits-- > 0)
+  {
+    remainder *= 10.0;
+    unsigned int toPrint = (unsigned int)(remainder);
+    n += print(toPrint);
+    remainder -= toPrint; 
+  } 
+  
+  return n;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Print.h	Mon Jul 29 03:49:50 2019 +0000
@@ -0,0 +1,96 @@
+/*
+ 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 <stdint.h>
+#include <string>
+#include <string.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:
+        inline 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) {
+            if(str == NULL)
+                return 0;
+        return write((const uint8_t *) str, strlen(str));
+        }
+        virtual size_t write(const uint8_t *buffer, size_t size);
+        size_t write(const char *buffer, size_t size) {
+            return write((const uint8_t *) buffer, size);
+        }
+        // These handle ambiguity for write(0) case, because (0) can be a pointer or an integer
+        inline size_t write(short t) { return write((uint8_t)t); }
+        inline size_t write(unsigned short t) { return write((uint8_t)t); }
+        inline size_t write(int t) { return write((uint8_t)t); }
+        inline size_t write(unsigned int t) { return write((uint8_t)t); }
+        inline size_t write(long t) { return write((uint8_t)t); }
+        inline size_t write(unsigned long t) { return write((uint8_t)t); }
+        // Enable write(char) to fall through to write(uint8_t)
+        inline size_t write(char c) { return write((uint8_t) c); }
+        inline size_t write(int8_t c) { return write((uint8_t) c); }
+
+        size_t printf(const char * format, ...)  __attribute__ ((format (printf, 2, 3)));
+        size_t print(const std::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 println(const std::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(void);
+
+        virtual void flush() { /* Empty implementation for backward compatibility */ }
+};
+
+#endif
\ No newline at end of file