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NaN in quantifiers is not allowed, message complains about P6opaque (/ .**{NaN..NaN} /) #5806

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p6rt opened this issue Nov 17, 2016 · 4 comments
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@p6rt
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@p6rt p6rt commented Nov 17, 2016

Migrated from rt.perl.org#130124 (status was 'resolved')

Searchable as RT130124$

@p6rt
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@p6rt p6rt commented Nov 17, 2016

From @AlexDaniel

*Code​:*
say ‘abcefgh’ ~~ / .**{0..NaN} /

*Result​:*
This type cannot unbox to a native integer​: P6opaque, Failure
  in block <unit> at -e line 1

*Code​:*
say ‘abcefgh’ ~~ / .**{NaN..5} /

*Result​:*
This type cannot unbox to a native integer​: P6opaque, Failure
  in block <unit> at -e line 1

Compare that to what happens if you try to use -Inf​:

*Code​:*
say ‘abcefgh’ ~~ / .**{0..-Inf} /

*Result​:*
Range maximum in quantifier (**) cannot be -Inf
  in block <unit> at -e line 1

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@p6rt
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@p6rt p6rt commented Oct 1, 2017

From @zoffixznet

On Thu, 17 Nov 2016 14​:09​:50 -0800, alex.jakimenko@​gmail.com wrote​:

*Code​:*
say ‘abcefgh’ ~~ / .**{0..NaN} /

*Result​:*
This type cannot unbox to a native integer​: P6opaque, Failure
in block <unit> at -e line 1

*Code​:*
say ‘abcefgh’ ~~ / .**{NaN..5} /

*Result​:*
This type cannot unbox to a native integer​: P6opaque, Failure
in block <unit> at -e line 1

Compare that to what happens if you try to use -Inf​:

*Code​:*
say ‘abcefgh’ ~~ / .**{0..-Inf} /

*Result​:*
Range maximum in quantifier (**) cannot be -Inf
in block <unit> at -e line 1

Thank you for the report. This is now fixed.

Fix​: rakudo/rakudo@681d6be
Test​: Raku/roast@99c822a

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@p6rt p6rt commented Oct 1, 2017

The RT System itself - Status changed from 'new' to 'open'

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@p6rt
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@p6rt p6rt commented Oct 1, 2017

@zoffixznet - Status changed from 'open' to 'resolved'

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@p6rt p6rt closed this Oct 1, 2017
@p6rt p6rt added the LTA label Jan 5, 2020
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