[avr-libc-dev] [patch #3851] 'dtostre' speed up

[Dmitry Xmelkov]

Follow-up Comment #5, patch #3851 (project avr-libc):

The basis of all functions (ftoa_engine. S) demands only the
insignificant correction connected with the advent of macro
__AVR_HAVE_LPMX __. But remain solved questions what to deduce for
numbers which according to IEEE 754 do not concern to normal
(Subnormals, NaNs, Infs). The current mathematical library is
inconsistent (for example bug #13330).

I suggest to not waste time on completion of this patch (reduction
conformity of different parts libm), and to accept entirely a patch
containing in item bug #1929 (avr-libc-1.4.4-20060501.diff.bz2). This
patch, except for updating all libm, contains accelerated (and
corrected) a variant dtostre/dtostrf. Other parts of a patch #3851
(dtoa_prf/lim/cln, vprintf) I can add later. Tests are in
fplib-20060501.tar.bz2.


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