The only difference is the test constant: 0x10 for a data segment load, 0x15 for a far call target.
Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.
，这一点在safew官方版本下载中也有详细论述
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Older power stations have simply placed a grill across the inlet pipes, filtering out fish, which are killed in the process.
"The whole audience were joining in - there is a group of ladies in their 80s who come every year and I saw them all punching the air along with everyone else.