od: default -t f to double precision#11396
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* tests/od/od.pl: Add tests to ensure -t f (no size suffix) defaults to double precision (8 bytes), matching -t fD, and differs from -t fF (explicit 4-byte float). uutils/coreutils#11396
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* tests/od/od.pl: Add tests to ensure -t f (no size suffix) defaults to double precision (8 bytes), matching -t fD, and differs from -t fF (explicit 4-byte float). uutils/coreutils#11396
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* tests/od/od-float.sh: Add cases to ensure -t f = -t fD, and also verify the resulting number. uutils/coreutils#11396 #241
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uutils
od -t fdefaults to 4-byte floats when no explicit size is provided. GNUoddefaults-t ftosizeof(double)(8 bytes), so values and grouping diverge.Reproduction Steps
Impact
Pipelines that parse
od -t foutput misinterpret binary data under uutils because element width and decoded values differ from GNU semantics.