mprintf: overhaul and bugfixes

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In a test case using lots of snprintf() calls using many commonly used
%-codes per call, this version is around 30% faster than previous
version.

It also fixes the #12561 bug which made it not behave correctly when
given unknown %-sequences. Fixing that flaw required a different take on
the problem, which resulted in the new two-arrays model.

lib557: extended - Verify the #12561 fix and test more printf features

unit1398: fix test: It used a <num>$ only for one argument, which is not
supported.

Fixes #12561
Closes #12563

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This commit is contained in:

Daniel Stenberg 2023-12-22 09:51:20 +01:00

parent 2d4d0c1fd3

commit ef2cf58c77

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3 changed files with 653 additions and 587 deletions

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