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authorvg <vgm+dev@devys.org>2020-07-07 16:24:01 +0200
committervg <vgm+dev@devys.org>2020-07-07 16:24:01 +0200
commit66dcf910bd4744d8ced56cb9586aa937a1a2d4c5 (patch)
treedf4dca1ae4af1e5df0be0d1f4f2cd0d54751f8e8 /test/ardmake/hardware/cores/arduino/Print.cpp
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+/*
+ 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 "wiring.h"
+
+#include "Print.h"
+
+// Public Methods //////////////////////////////////////////////////////////////
+
+/* default implementation: may be overridden */
+void Print::write(const char *str)
+{
+ while (*str)
+ write(*str++);
+}
+
+/* default implementation: may be overridden */
+void Print::write(const uint8_t *buffer, size_t size)
+{
+ while (size--)
+ write(*buffer++);
+}
+
+void Print::print(const String &s)
+{
+ for (int i = 0; i < s.length(); i++) {
+ write(s[i]);
+ }
+}
+
+void Print::print(const char str[])
+{
+ write(str);
+}
+
+void Print::print(char c, int base)
+{
+ print((long) c, base);
+}
+
+void Print::print(unsigned char b, int base)
+{
+ print((unsigned long) b, base);
+}
+
+void Print::print(int n, int base)
+{
+ print((long) n, base);
+}
+
+void Print::print(unsigned int n, int base)
+{
+ print((unsigned long) n, base);
+}
+
+void Print::print(long n, int base)
+{
+ if (base == 0) {
+ write(n);
+ } else if (base == 10) {
+ if (n < 0) {
+ print('-');
+ n = -n;
+ }
+ printNumber(n, 10);
+ } else {
+ printNumber(n, base);
+ }
+}
+
+void Print::print(unsigned long n, int base)
+{
+ if (base == 0) write(n);
+ else printNumber(n, base);
+}
+
+void Print::print(double n, int digits)
+{
+ printFloat(n, digits);
+}
+
+void Print::println(void)
+{
+ print('\r');
+ print('\n');
+}
+
+void Print::println(const String &s)
+{
+ print(s);
+ println();
+}
+
+void Print::println(const char c[])
+{
+ print(c);
+ println();
+}
+
+void Print::println(char c, int base)
+{
+ print(c, base);
+ println();
+}
+
+void Print::println(unsigned char b, int base)
+{
+ print(b, base);
+ println();
+}
+
+void Print::println(int n, int base)
+{
+ print(n, base);
+ println();
+}
+
+void Print::println(unsigned int n, int base)
+{
+ print(n, base);
+ println();
+}
+
+void Print::println(long n, int base)
+{
+ print(n, base);
+ println();
+}
+
+void Print::println(unsigned long n, int base)
+{
+ print(n, base);
+ println();
+}
+
+void Print::println(double n, int digits)
+{
+ print(n, digits);
+ println();
+}
+
+// Private Methods /////////////////////////////////////////////////////////////
+
+void Print::printNumber(unsigned long n, uint8_t base)
+{
+ unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars.
+ unsigned long i = 0;
+
+ if (n == 0) {
+ print('0');
+ return;
+ }
+
+ while (n > 0) {
+ buf[i++] = n % base;
+ n /= base;
+ }
+
+ for (; i > 0; i--)
+ print((char) (buf[i - 1] < 10 ?
+ '0' + buf[i - 1] :
+ 'A' + buf[i - 1] - 10));
+}
+
+void Print::printFloat(double number, uint8_t digits)
+{
+ // Handle negative numbers
+ if (number < 0.0)
+ {
+ 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;
+ print(int_part);
+
+ // Print the decimal point, but only if there are digits beyond
+ if (digits > 0)
+ print(".");
+
+ // Extract digits from the remainder one at a time
+ while (digits-- > 0)
+ {
+ remainder *= 10.0;
+ int toPrint = int(remainder);
+ print(toPrint);
+ remainder -= toPrint;
+ }
+}