Abu Dhabi National Oil Co. is “managing offshore production levels to address storage requirements,” the company said in a statement, without giving details. Kuwait Petroleum Corp. said it was lowering production at both its oil fields and refineries after “Iranian threats against safe passage of ships through the Strait of Hormuz.”
SummaryIf you want to have good performance for your singleton implementation and you need to provide a constructor, you should go for the static data member implementation. In case you can default the default constructor, the two implementation strategies are equivalent performancewise. I would suggest using the block local approach as it saves having to define and initialize the singleton object in an implementation file.
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