volatile
名词 n.
形容词 adj.
英 /ˈvɒl.əˌtaɪl/|[ˈvɒl.əˌtʰaɪ̯l]
美 /ˈvɑ.lə.təl/|[ˈvɑl.ə.tʰl̩]
英文释义
名词 n.
- A chemical or compound that changes into a gas easily.
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A variable that is volatile, i.e. has its associated memory immediately updated with any change in value.
— Operations on C++ volatiles do put the compiler on notice that the object may be modified asynchronously, and hence are generally safer to use than ordinary variable accesses.
形容词 adj.
- Evaporating or vaporizing readily under normal conditions.
- Of a substance, explosive.
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Of a price, variable or erratic.
— Its pricing is highly volatile — and therefore highly risky. For all its nosebleed ascents, bitcoin also has had some gut-punching plunges. Between November 2021 and November 2022, for example, the price of bitcoin dropped 75%, from $64,455 to $16,196, according to data on coinmarketcap.com.
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Of a person, quick to become angry or violent.
— a volatile man
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Fickle.
— Now Mr. Bush plans to pour more arms into this unstable region and add fuel to the volatile powderkeg he has foolishly created.
- Temporary or ephemeral.
- Of a situation potentially violent.
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Of a variable etc., having its associated memory immediately updated with any changes in value.
— This method stores a value into a non-volatile field called result, then stores true in the volatile field finished. The main thread waits for the field finished to be set to true, then reads the field result.
- Of memory, whose content is lost when the computer is powered down.
- Passing through the air on wings, or by the buoyant force of the atmosphere; flying; having the power to fly.
词汇关系
词源
词源 1
From Middle French volatile, from Latin volātilis (“flying; swift; temporary; volatile”), from volō (“to fly”).
词源 2
From Middle French volatile, from Latin volātilis (“flying; swift; temporary; volatile”), from volō (“to fly”).
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数据来源: Wiktionary