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/perl5Public

Enable "Useless use of %s in void context" warning for chained comparisons#22969

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mauke merged 1 commit intoPerl:bleadfromt-a-k:warn-cmpchain-void
Feb 9, 2025

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t-a-k
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This particular warning was not issued for chained comparisons such as1 < $a < 2 in void context.

% perl -we '$a = 1.5; 1 < $a'Useless use of numeric lt (<) in void context at -e line 1.% perl -we '$a = 1.5; 1 < $a < 2'%# (no warnings)

This change will enable the warning for such cases.

  • This set of changes requires a perldelta entry, and it is included.

…comparisonsThis particular warning is not issued for chained comparisons such as`1 < $a < 2` in void context before this change.t/lib/warnings/op: Add tests for this warning.
@scottchiefbaker
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Interesting. Good catch.

@richardleach
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LGTM

@maukemauke merged commit225c128 intoPerl:bleadFeb 9, 2025
@t-a-kt-a-k deleted the warn-cmpchain-void branchFebruary 12, 2025 12:41
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@maukemaukemauke approved these changes

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@t-a-k@scottchiefbaker@richardleach@mauke

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