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mozilla::NotNull
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Nicholas Nethercote
Jul 14, 2016, 8:27:37 PM7/14/16
to dev-platform
Hi,
mozilla::NotNull is a recent addition to MFBT. It is used to mark
pointers (both raw and smart) that are never null, e.g.:
- NotNull<char*>
- NotNull<RefPtr<Event>>
- NotNull<nsCOMPtr<Event>>
It's most useful when used in function parameters and class members,
more so than local variables. Its use can clarify APIs, and also help
identify missing null checks and unnecessary null checks.
See the comments in mfbt/NotNull.h for more details.
Nick
mozilla::NotNull is a recent addition to MFBT. It is used to mark
pointers (both raw and smart) that are never null, e.g.:
- NotNull<char*>
- NotNull<RefPtr<Event>>
- NotNull<nsCOMPtr<Event>>
It's most useful when used in function parameters and class members,
more so than local variables. Its use can clarify APIs, and also help
identify missing null checks and unnecessary null checks.
See the comments in mfbt/NotNull.h for more details.
Nick
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