bug: printf panic same as fixed for %d but %f not

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
82/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Quiet
Tech stack
rust
Domain
cli

Research direction

Start in src/uucore/src/lib/features/format/num_format.rs around line 390 and reproduce the panic with ./printf "%.100000f" 1 7. Compare this path with the already-fixed handling for "%.100000d". Done means the floating-point format no longer panics for the reported command and the relevant formatting behavior is covered by a test.

Written by the indexing model from the issue text.

Description

U - printf

Hi, uutils mainteners

the previous "%.100000d" fixed no longer panic but `"%.100000f" still panics as i observed

relunsec@relunsec:~/software/coreutils/target/debug$ ./printf "%.100000f"  1 7

thread 'main' (65075) panicked at src/uucore/src/lib/features/format/num_format.rs:390:5:
Formatting argument out of range
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Dominant language
Rust
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Merged PRs (30d)
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