本文整理汇总了C++中BitSet32::isEmpty方法的典型用法代码示例。如果您正苦于以下问题：C++ BitSet32::isEmpty方法的具体用法？C++ BitSet32::isEmpty怎么用？C++ BitSet32::isEmpty使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BitSet32的用法示例。
在下文中一共展示了BitSet32::isEmpty方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
TEST_F(BitSet32Test, BitWiseAnd_Disjoint) {
b1.markBit(2);
b1.markBit(4);
b1.markBit(6);
BitSet32 tmp = b1 & b2;
EXPECT_TRUE(tmp.isEmpty());
// Check that the operator is symmetric
EXPECT_TRUE((b2 & b1) == (b1 & b2));
b2 &= b1;
EXPECT_TRUE(b2.isEmpty());
EXPECT_EQ(b1.count(), 3u);
EXPECT_TRUE(b1.hasBit(2) && b1.hasBit(4) && b1.hasBit(6));
}示例2: addMovement
void VelocityTracker::addMovement(nsecs_t eventTime, BitSet32 idBits, const Position* positions) {
while (idBits.count() > MAX_POINTERS) {
idBits.clearLastMarkedBit();
}
if ((mCurrentPointerIdBits.value & idBits.value)
&& eventTime >= mLastEventTime + ASSUME_POINTER_STOPPED_TIME) {
#if DEBUG_VELOCITY
ALOGD("VelocityTracker: stopped for %0.3f ms, clearing state.",
(eventTime - mLastEventTime) * 0.000001f);
#endif
// We have not received any movements for too long. Assume that all pointers
// have stopped.
mStrategy->clear();
}
mLastEventTime = eventTime;
mCurrentPointerIdBits = idBits;
if (mActivePointerId < 0 || !idBits.hasBit(mActivePointerId)) {
mActivePointerId = idBits.isEmpty() ? -1 : idBits.firstMarkedBit();
}
mStrategy->addMovement(eventTime, idBits, positions);
#if DEBUG_VELOCITY
ALOGD("VelocityTracker: addMovement eventTime=%" PRId64 ", idBits=0x%08x, activePointerId=%d",
eventTime, idBits.value, mActivePointerId);
for (BitSet32 iterBits(idBits); !iterBits.isEmpty(); ) {
uint32_t id = iterBits.firstMarkedBit();
uint32_t index = idBits.getIndexOfBit(id);
iterBits.clearBit(id);
Estimator estimator;
getEstimator(id, &estimator);
ALOGD(" %d: position (%0.3f, %0.3f), "
"estimator (degree=%d, xCoeff=%s, yCoeff=%s, confidence=%f)",
id, positions[index].x, positions[index].y,
int(estimator.degree),
vectorToString(estimator.xCoeff, estimator.degree + 1).c_str(),
vectorToString(estimator.yCoeff, estimator.degree + 1).c_str(),
estimator.confidence);
}
#endif
}