may not -> might not #83582
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may not -> might not #83582
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"may not" has two possible meanings: 1. A command: "You may not stay up past your bedtime." 2. A fact that's only sometimes true: "Some cities may not have bike lanes." In some cases, the meaning is ambiguous: "Some cars may not have snow tires." (do the cars *happen* to not have snow tires, or is it physically impossible for them to have snow tires?) This changes places where the standard library uses the "description of fact" meaning to say "might not" instead. This is just `std::vec` for now - if you think this is a good idea I can convert the rest of the standard library.
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r? @dtolnay (rust-highfive has picked a reviewer for you, use r? to override) |
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Avoiding this ambiguity entirely seems reasonable to me, as long as we avoid either meaning of "may". We can change the first meaning to "must not". |
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@bors r+ rollup |
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📌 Commit e051db6 has been approved by |
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☀️ Test successful - checks-actions |
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may not -> might not
"may not" has two possible meanings:
In some cases, the meaning is ambiguous: "Some cars may not have snow
tires." (do the cars happen to not have snow tires, or is it
physically impossible for them to have snow tires?)
This changes places where the standard library uses the "description of
fact" meaning to say "might not" instead.
This is just
std::vecfor now - if you think this is a good idea I canconvert the rest of the standard library.