169     std::vector<T> mBuffer;  variable
266     if (mBuffer.size() < mMaxBufferSize) {  in add()
267         mBuffer.push_back(item);  in add()
272     mBuffer[mFrontIdx] = item;  in add()
278     if (mBuffer.size() != mMaxBufferSize) {  in add()
279         mBuffer.push_back(std::forward<T>(item));  in add()
285     mBuffer[mFrontIdx] = std::forward<T>(item);  in add()
292     if (mBuffer.size() != mMaxBufferSize) {  in emplace()
293         mBuffer.emplace_back(std::forward<Args>(args)...);  in emplace()
299     mBuffer[mFrontIdx] = T(std::forward<Args>(args)...);  in emplace()
305     size_t tmp = (mBuffer.size() == 0) ? 0 : mBuffer.size() - 1;  in begin()
306     return iterator(mBuffer.data(), mBuffer.size(), (mFrontIdx == 0) ? tmp : mFrontIdx - 1, 0);  in begin()
311     size_t s = mBuffer.size();  in end()
312     return iterator(mBuffer.data(), s, s, s);  in end()
317     size_t tmp = (mBuffer.size() == 0) ? 0 : mBuffer.size() - 1;  in begin()
318     return const_iterator(mBuffer.data(), mBuffer.size(),  in begin()
324     size_t s = mBuffer.size();  in end()
325     return const_iterator(mBuffer.data(), s, s, s);  in end()
330     LOG_ALWAYS_FATAL_IF(index >= mBuffer.size(), "Index %zu out of bounds, size is %zu.",
331             index, mBuffer.size());
333             mBuffer.size() - 1 - (index - mFrontIdx) : mFrontIdx - 1 - index;
334     return mBuffer[pos];
339     LOG_ALWAYS_FATAL_IF(index >= mBuffer.size(), "Index %zu out of bounds, size is %zu.",
340             index, mBuffer.size());
342             mBuffer.size() - 1 - (index - mFrontIdx) : mFrontIdx - 1 - index;
343     return mBuffer[pos];
348     return mBuffer.size();  in size()
353     mBuffer.clear();  in clear()