42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
// Copyright (c) 2015-2019 The HomeKit ADK Contributors
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//
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// Licensed under the Apache License, Version 2.0 (the “License”);
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// you may not use this file except in compliance with the License.
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// See [CONTRIBUTORS.md] for the list of HomeKit ADK project authors.
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#undef HAP_DISALLOW_USE_IGNORED
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#define HAP_DISALLOW_USE_IGNORED 1
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#include "HAP+Internal.h"
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HAP_RESULT_USE_CHECK
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bool HAPBitSetContainsInternal(const uint8_t* bitSet, size_t numBytes, uint8_t bitIndex) {
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HAPPrecondition(bitSet);
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size_t byteIndex = bitIndex / CHAR_BIT;
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HAPPrecondition(byteIndex < numBytes);
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uint8_t bitMask = (uint8_t)(1u << (uint8_t)(bitIndex % CHAR_BIT));
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return bitSet[byteIndex] & bitMask;
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}
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void HAPBitSetInsertInternal(uint8_t* bitSet, size_t numBytes, uint8_t bitIndex) {
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HAPPrecondition(bitSet);
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size_t byteIndex = bitIndex / CHAR_BIT;
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HAPPrecondition(byteIndex < numBytes);
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uint8_t bitMask = (uint8_t)(1u << (uint8_t)(bitIndex % CHAR_BIT));
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bitSet[byteIndex] |= bitMask;
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}
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void HAPBitSetRemoveInternal(uint8_t* bitSet, size_t numBytes, uint8_t bitIndex) {
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HAPPrecondition(bitSet);
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size_t byteIndex = bitIndex / CHAR_BIT;
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HAPPrecondition(byteIndex < numBytes);
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uint8_t bitMask = (uint8_t)(1u << (uint8_t)(bitIndex % CHAR_BIT));
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bitSet[byteIndex] &= (uint8_t) ~bitMask;
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}
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