#seq

This documents version 0.2.3. The support record tracks platform verification and exact-version publication evidence separately.

Print a numeric sequence using LAST, FIRST LAST, or FIRST INCREMENT LAST. The default increment is always 1, so seq 3 1 produces no output; use seq 3 -1 1 to count down. Supports custom separators (-s) and equal-width zero padding (-w). Decimal and exponent inputs use exact fixed-point arithmetic, avoiding cumulative floating-point drift. Without -f, numeric operands are limited to 4096 characters; their decimal exponent and scale must each lie within -4096..4096. Larger values fail before output.

-f/--format accepts one e/E/f/F/g/G/a/A floating conversion with literal prefixes and suffixes, %%, numeric width and precision, and the flags -+ 0#. An existing L modifier is accepted; dynamic *, integer conversions, missing conversions and multiple conversions fail before output. Repeated formats use the last value, and -f cannot be combined with -w.

The formatted path uses the frozen GNU Linux amd64 extended-precision profile (64 significand bits and the x87 exponent range) with exact ties-to-even conversion and rendering on every supported host and backend. It evaluates FIRST + i * INCREMENT with binary rounding and applies GNU's format-dependent final-value recovery. This preserves negative zero and exposes binary rounding at high precision; it does not select the running host's long-double ABI or claim non-C locale. The default exact-decimal path is unchanged. Output is streamed through a bounded 64 KiB buffer without a fixed record-count cap. --version reports the package version. The earlier published release cli/seq@0.2.2 uses the GNU-compatible default +1. --help prints usage and --version prints the command and package version.

#Standalone metadata

Standalone --version prints exactly seq 0.2.3 followed by one newline. Standalone --help starts with Usage: seq, lists both metadata options, and ends with a newline. Both write to stdout, leave stdin unread, and exit with status 0. Exact-version publication and verification remain recorded separately in the support record.

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