[jayhemnani9910]

A number read with a suffix is not checked against the size limit for printing, so numfmt prints a rounded float instead of failing:

$ numfmt --from=si 1Y
GNU 9.7:  numfmt: value too large to be printed: '1e+24' (consider using --to)   (exit 2)
uutils:   999999999999999983222784                                               (exit 0)

Same for 10E, 1Z, 1R, 1Q, --from=auto 1Zi, and with --format=%.1f. Numbers written out in full were already refused; a suffixed value takes the float path in transform_to, which had no check. It now gets the same one (value times 10^precision against 10^19) when there is no --to.

The message also follows GNU in two details: without a precision it is value too large to be printed: '1e+19' (it said value/precision ... '1e+19/0'), and the value is printed like %g, so 1 and 0 show as 1 and 0 instead of 1e+0 and 0e+0.

Two existing expectations change: test_format_precision_too_large_on_zero expected '0e+0/40' (GNU: '0/40'), and --format=%.65536f 1.5, added in #13514 to stop a panic, expected 2; GNU refuses it with '1.5/65536', and so does this branch, still without a panic.

New tests test_value_with_suffix_too_large_to_print and test_value_too_large_without_precision; they and the updated zero case fail on main. The numfmt tests pass (172), clippy is clean. 34 inputs around the limit (suffixes, negative values, --format precisions, --to-unit, --from-unit, --invalid=warn, fields, padding) give the same output and exit code as GNU 9.7.

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[github-actions]

Binary size comparison:

Individual binary size comparison VS main (threshold: >=5% AND >=4 KB).

Total size of compared binaries: 155.04 MB (-304 KB, -0.19%)

Significant per-binary changes:
  date     2.61 MB ->    2.30 MB  (-316 KB, -11.81%)

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