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• Why does control block in shared_ptr maintain weak reference counter??

  ref: StackOverflow s question address The answer explained that weak reference counters have an impact on the life cycle of control block. I understand that new is different from make_shared, but I don t understand why control block needs to maint...

  Reference pointer cPP11 cPP

  Mar.15,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e92d68-45e8d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e92d68-45e8d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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