bug in gmp_fprintf?
nisse at lysator.liu.se
Tue Nov 24 06:15:19 UTC 2015
tg at gmplib.org (Torbjörn Granlund) writes:
> In reproducing the error, I ran into embarrassingly slow code in
> scanf/doscan.c; we read a byte at a time through a callback (see GET())
> and test the base argument in a tight, serially dependent loop.
The first thing to do when optimizing anything using (f)getc, is to use
getc_unlocked (and flockfile/funlockfile outside of the loop).
Maybe that's enoough to get reasonable speed?
> while (...)
> ungetc(bp[...], fp);
I'm suspect it's unportable to ungetc more than one character.
Niels Möller. PGP-encrypted email is preferred. Keyid C0B98E26.
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