diff options
author | David A. Mellis <d.mellis@arduino.cc> | 2009-11-21 23:23:43 +0000 |
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committer | David A. Mellis <d.mellis@arduino.cc> | 2009-11-21 23:23:43 +0000 |
commit | 35f5f6e99f15e0cc674c814937c82ef5fbbf86c3 (patch) | |
tree | bc2c0bbb790831ab26bfa8221cf6f3554363b89b /cores/arduino/Print.cpp | |
parent | 80d8477877dc004f293d0ab1717b8783421d84a0 (diff) |
Improving third-party hardware support:
- moving back to multple cores per platform
- using target instead of platform
- moving per-board and per-programmer preferences out of Preferences.java and into a new Target class
- adding a new "target" preference
- support for platform:value values in board preferences for bootloader path and core
- XXX: need to support platform:value syntax for board upload.using preferences.
Diffstat (limited to 'cores/arduino/Print.cpp')
-rwxr-xr-x | cores/arduino/Print.cpp | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/cores/arduino/Print.cpp b/cores/arduino/Print.cpp new file mode 100755 index 0000000..74d0e5b --- /dev/null +++ b/cores/arduino/Print.cpp @@ -0,0 +1,215 @@ +/* + 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 <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(uint8_t b) +{ + this->write(b); +} + +void Print::print(char c) +{ + print((byte) c); +} + +void Print::print(const char str[]) +{ + write(str); +} + +void Print::print(int n) +{ + print((long) n); +} + +void Print::print(unsigned int n) +{ + print((unsigned long) n); +} + +void Print::print(long n) +{ + if (n < 0) { + print('-'); + n = -n; + } + printNumber(n, 10); +} + +void Print::print(unsigned long n) +{ + printNumber(n, 10); +} + +void Print::print(long n, int base) +{ + if (base == 0) + print((char) n); + else if (base == 10) + print(n); + else + printNumber(n, base); +} + +void Print::print(double n) +{ + printFloat(n, 2); +} + +void Print::println(void) +{ + print('\r'); + print('\n'); +} + +void Print::println(char c) +{ + print(c); + println(); +} + +void Print::println(const char c[]) +{ + print(c); + println(); +} + +void Print::println(uint8_t b) +{ + print(b); + println(); +} + +void Print::println(int n) +{ + print(n); + println(); +} + +void Print::println(unsigned int n) +{ + print(n); + println(); +} + +void Print::println(long n) +{ + print(n); + println(); +} + +void Print::println(unsigned long n) +{ + print(n); + println(); +} + +void Print::println(long n, int base) +{ + print(n, base); + println(); +} + +void Print::println(double n) +{ + print(n); + 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; + } +} |