Adhemerval Zanella 2be836fe44 stdio: Remove UB on printf_fp ...

The __printf_fp_buffer_1 issues count_leading_zeros with 0 argument,
which might leads to call __builtin_ctz depending of the ABI.
Replace with stdbit.h function instead.

Checked on x86_64-linux-gnu and i686-linux-gnu.
Reviewed-by: Paul Eggert <eggert@cs.ucla.edu>

2025-04-28 09:51:59 -03:00

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