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Cprover should have an __enum_in_range primitive #5473

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danielsn opened this issue Aug 25, 2020 · 3 comments
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Cprover should have an __enum_in_range primitive #5473

danielsn opened this issue Aug 25, 2020 · 3 comments
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aws Bugs or features of importance to AWS CBMC users new feature

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@danielsn
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It is currently difficult to use the --enum-range-check option, because it is hard to ensure in a harness that an enum is within range. IF there was a
__CPROVER_enum_is_in_range(e) primitive, we could use it like
__CPROVER_assume(__CPROVER_enum_is_in_range(e))
and
assert(__CPROVER_enum_is_in_range(e))
@danielsn danielsn added the aws Bugs or features of importance to AWS CBMC users label Aug 25, 2020
@feliperodri
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@hannes-steffenhagen-diffblue is there anyone currently working on this issue? Any updates?

@TGWDB
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TGWDB commented Feb 9, 2021

See pull request here.

TGWDB added a commit that referenced this issue Feb 17, 2021
@TGWDB
Merge pull request #5808 from TGWDB/CPROVER-enum-is-in-range
bfad11a 
This adds a new builtin function __CPROVER_enum_is_in_range to determine if an enum is one of the valid enum values. This fixes issue 5473: #5473
@TGWDB TGWDB closed this as completed Feb 17, 2021
@TGWDB
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TGWDB commented Feb 17, 2021

Fixed in #5808

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@feliperodri @danielsn @hannes-steffenhagen-diffblue @TGWDB