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65 lines
1.3 KiB
C++
65 lines
1.3 KiB
C++
#pragma once
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//
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// FILE: SparseArray.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.1
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// DATE: 2022-07-17
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// PURPOSE: Arduino library for sparse arrays of floats
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// URL: https://github.com/RobTillaart/SparseArray
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//
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#include "Arduino.h"
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#define SPARSEARRAY_LIB_VERSION (F("0.1.1"))
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#ifndef SPARSEARRAY_MAX_SIZE
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#define SPARSEARRAY_MAX_SIZE 1000
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#endif
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class SparseArray
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{
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public:
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SparseArray(uint16_t sz);
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~SparseArray();
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uint16_t size();
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uint16_t count();
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float sum();
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void clear();
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// returns false if no slots free
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bool set(uint16_t x, float value);
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// adds value to element x
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bool add(uint16_t x, float value);
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float get(uint16_t x);
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// returns two values between all values != 0 are located.
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void boundingSegment(uint16_t &minX, uint16_t &maxX);
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protected:
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uint16_t _size = 0;
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uint16_t _count = 0;
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uint16_t *_x = NULL; // support array's [0..65535]
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float *_value = NULL;
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// returns index of x if in set
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// otherwise -1
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int32_t findPos(uint16_t x);
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// removes element at position (from findPos)
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// pre: count > 0
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void removeElement(uint16_t pos);
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// creates a new element if value != 0 and if there is room
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bool newElement(uint16_t x, float value);
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};
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// -- END OF FILE --
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