Uninitialized pointer field

The pointer field will point to an arbitrary memory location, any attempt to write may cause corruption. A pointer field is not initialized in the constructor
/src/mongo/util/histogram.h:100: UNINIT_CTOR 122312 Class member declaration for "count".
/src/mongo/util/histogram.h:112: UNINIT_CTOR 122312 Non-static class member "_b.count" is not initialized in this constructor nor in any functions that it calls.
/src/mongo/util/histogram.h:101: UNINIT_CTOR 122312 Class member declaration for "lower".
/src/mongo/util/histogram.h:112: UNINIT_CTOR 122312 Non-static class member "_b.lower" is not initialized in this constructor nor in any functions that it calls.
/src/mongo/util/histogram.h:102: UNINIT_CTOR 122312 Class member declaration for "upper".
/src/mongo/util/histogram.h:112: UNINIT_CTOR 122312 Non-static class member "_b.upper" is not initialized in this constructor nor in any functions that it calls.