mirror of
https://github.com/RobTillaart/Arduino.git
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101 lines
2.2 KiB
C++
101 lines
2.2 KiB
C++
//
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// FILE: BoolArray.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.2.5
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// PURPOSE: BoolArray library for Arduino
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// URL: https://github.com/RobTillaart/BoolArray.git
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// http://forum.arduino.cc/index.php?topic=361167
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//
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// HISTORY
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// 0.1.00 initial version
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// 0.1.01 fixed constructor - Thanks WPD64 + error handling
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// 0.1.02 added error handling
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// 0.1.3 added toggle
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// 0.1.4 2017-07-16 added masks for performance
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// 0.2.0 2020-03-29 #pragma, readme.md,
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// 0.2.1 2020-06-05 Fix library.json
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// 0.2.2 2020-12-15 add arduino-CI + unit tests
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// 0.2.3 2021-01-19 update readme
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// 0.2.4 2021-10-19 update build-CI + badges
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// 0.2.5 2021-12-12 update library.json, license, minor edits
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#include "BoolArray.h"
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BoolArray::BoolArray()
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{
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_array = NULL;
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_size = 0;
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}
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BoolArray::~BoolArray()
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{
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if (_array) free(_array);
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}
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uint8_t BoolArray::begin(const uint16_t size)
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{
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if (size > BOOLARRAY_MAXSIZE) return BOOLARRAY_SIZE_ERROR;
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_size = size;
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_bytes = (_size + 7) / 8;
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if (_array) free(_array);
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_array = (byte*) malloc(_bytes);
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return BOOLARRAY_OK;
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}
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uint8_t BoolArray::get(const uint16_t index)
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{
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if (_array == NULL) return BOOLARRAY_INIT_ERROR;
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if (index >= _size) return BOOLARRAY_SIZE_ERROR;
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uint8_t by = index / 8;
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uint8_t bi = index & 7;
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return (_array[by] & _masks[bi]) > 0;
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}
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uint8_t BoolArray::set(const uint16_t index, const uint8_t value)
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{
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if (_array == NULL) return BOOLARRAY_INIT_ERROR;
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if (index >= _size) return BOOLARRAY_SIZE_ERROR;
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uint8_t by = index / 8;
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uint8_t bi = index & 7;
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if (value == 0) _array[by] &= ~_masks[bi];
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else _array[by] |= _masks[bi];
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return BOOLARRAY_OK;
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}
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uint8_t BoolArray::toggle(const uint16_t index)
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{
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if (_array == NULL) return BOOLARRAY_INIT_ERROR;
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if (index >= _size) return BOOLARRAY_SIZE_ERROR;
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uint8_t by = index / 8;
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uint8_t bi = index & 7;
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_array[by] ^= _masks[bi];
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return BOOLARRAY_OK;
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}
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uint8_t BoolArray::setAll(const uint8_t value)
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{
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if (_array == NULL) return BOOLARRAY_INIT_ERROR;
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uint8_t *p = _array;
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uint8_t t = _bytes;
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if (value == 0)
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{
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while(t--) *p++ = 0;
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}
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else
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{
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while(t--) *p++ = 0xFF;
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}
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return BOOLARRAY_OK;
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}
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// -- END OF FILE --
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