33 lines
595 B
C++
33 lines
595 B
C++
/*
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* Array of bits.
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*/
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#pragma once
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#include <cstdint>
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#include <cassert>
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/**
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* Array of bits used for scheduling work.
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*/
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class MinBitArray {
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public:
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MinBitArray() : bits_(0) {}
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/** Sets an individual bit. */
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void set(int index) { check(index); bits_ |= 1 << index; }
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bool is_empty() const { return bits_ == 0; }
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/** Finds the lowest set bit, clears it, and returns the index. */
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int8_t pop();
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private:
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int count() const { return sizeof(bits_)*8; }
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void check(int index) {
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assert(index >= 0 && index < count());
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}
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uint8_t bits_;
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};
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