[PATCH][BZ #22243] fix log2(0) and log(10) in downward rounding

[Joseph Myers]

On Tue, 3 Oct 2017, Szabolcs Nagy wrote:

> On 64bit targets if the SVID compat wrapper is suppressed (e.g. static linking)
> then log2(0) and log10(0) returned inf instead of -inf.
> 
> 2017-10-03  Szabolcs Nagy  <szabolcs.nagy@arm.com>
> 
> 	[BZ #22243]
> 	* sysdeps/ieee754/dbl-64/wordsize-64/e_log10.c (__ieee754_log10): Use fabs.
> 	* sysdeps/ieee754/dbl-64/wordsize-64/e_log2.c (__ieee754_log2): Likewise.

OK.

-- 
Joseph S. Myers
joseph@codesourcery.com