Recent questions tagged union

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I need the most viable way to search docs with the following structure. { _id:"", var1: number, var2: ... suggest an alternate nosql solution. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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union - Java: Is there an easy, quick way to AND, OR, or XOR together sets?

That is, if I had two or more sets, and I wanted to return a new set containing either: All of the ... the wrong terminology, isn't it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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union 'punning' structs w/ "common initial sequence": Why does C (99+), but not C++, stipulate a 'visible declaration of the union type'?

Background Discussions on the mostly un-or-implementation-defined nature of type-punning via a union typically quote the ... So, let's go! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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