internals
What value does a database use to represent NULL on disk?
When a database system writes a record to a page on disk, and one of the fields in that record is null, what value is used to represent that \'null\' such that when the record is read back in, it know[详细]
2022-12-17 07:04 分类:问答GCC internals: Where are fake dereferences removed?
The expression &ptr->fld doesn\'t represent a dereference, instead it should be treated as (uint32_t)ptr + offsetof (ptr, fld).I am certain that GCC does this simplification, but I cannot find[详细]
2022-12-17 05:27 分类:问答Limitations to modifying rt.jar
What are the limitations when modifying classes in rt.jar.I realize this is generally specific to the version and vendor of the JRE.I\'ve found that Hotspot in the Sun 1.6 VM, for instance, doesn\'t l[详细]
2022-12-08 03:46 分类:问答
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