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authorCristian Maglie <c.maglie@bug.st>2013-06-01 23:16:02 +0200
committerCristian Maglie <c.maglie@bug.st>2013-06-01 23:16:02 +0200
commit177ad96f866714a4962be57f69cd3d5a6334cde1 (patch)
tree1072239986340d6a239adac924eddf2e1d1ca566 /cores/robot/Print.cpp
parent6cff36ac5e85c74bcb45cc53491ad69d64520b36 (diff)
parentd90fcca5839d13d57ed527d4009b78d22dafbde7 (diff)
Merge branch 'merge-1.0.5' into ide-1.5.x-discovery
Diffstat (limited to 'cores/robot/Print.cpp')
-rwxr-xr-xcores/robot/Print.cpp268
1 files changed, 268 insertions, 0 deletions
diff --git a/cores/robot/Print.cpp b/cores/robot/Print.cpp
new file mode 100755
index 0000000..53961ec
--- /dev/null
+++ b/cores/robot/Print.cpp
@@ -0,0 +1,268 @@
+/*
+ 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
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include "Arduino.h"
+
+#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--) {
+ n += write(*buffer++);
+ }
+ return n;
+}
+
+size_t Print::print(const __FlashStringHelper *ifsh)
+{
+ const char PROGMEM *p = (const char PROGMEM *)ifsh;
+ size_t n = 0;
+ while (1) {
+ unsigned char c = pgm_read_byte(p++);
+ if (c == 0) break;
+ n += write(c);
+ }
+ return n;
+}
+
+size_t Print::print(const String &s)
+{
+ size_t n = 0;
+ for (uint16_t i = 0; i < s.length(); i++) {
+ n += write(s[i]);
+ }
+ return n;
+}
+
+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(const __FlashStringHelper *ifsh)
+{
+ size_t n = print(ifsh);
+ n += println();
+ return n;
+}
+
+size_t Print::print(const Printable& x)
+{
+ return x.printTo(*this);
+}
+
+size_t Print::println(void)
+{
+ size_t n = print('\r');
+ n += print('\n');
+ return n;
+}
+
+size_t Print::println(const 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;
+}
+
+size_t Print::println(const Printable& x)
+{
+ size_t n = print(x);
+ 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 {
+ unsigned long m = n;
+ n /= base;
+ char c = m - base * n;
+ *--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;
+ int toPrint = int(remainder);
+ n += print(toPrint);
+ remainder -= toPrint;
+ }
+
+ return n;
+}