What does sentinel value mean?
Definitions for sentinel value
sen·tinel val·ue
This dictionary definitions page includes all the possible meanings, example usage and translations of the word sentinel value.
Wikipedia
Sentinel value
In computer programming, a sentinel value (also referred to as a flag value, trip value, rogue value, signal value, or dummy data) is a special value in the context of an algorithm which uses its presence as a condition of termination, typically in a loop or recursive algorithm. The sentinel value is a form of in-band data that makes it possible to detect the end of the data when no out-of-band data (such as an explicit size indication) is provided. The value should be selected in such a way that it is guaranteed to be distinct from all legal data values, since otherwise the presence of such values would prematurely signal the end of the data (the semipredicate problem). A sentinel value is sometimes known as an "Elephant in Cairo", due to a joke where this is used as a physical sentinel. In safe languages, most uses of sentinel values could be replaced with option types, which enforce explicit handling of the exceptional case.
Numerology
Chaldean Numerology
The numerical value of sentinel value in Chaldean Numerology is: 7
Pythagorean Numerology
The numerical value of sentinel value in Pythagorean Numerology is: 6
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"sentinel value." Definitions.net. STANDS4 LLC, 2024. Web. 5 May 2024. <https://www.definitions.net/definition/sentinel+value>.
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