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authorJoseph Myers <joseph@codesourcery.com>2016-02-18 22:24:32 +0000
committerJoseph Myers <joseph@codesourcery.com>2016-02-18 22:24:32 +0000
commitb9a76339be2514c700d801e179ef9b6c910eaedf (patch)
treea297f70bbf3c8a8713b11ab593b71e9acd59f245 /iconvdata/CP1255.irreversible
parente2310a27bede834c7b63a8bd1d659c376b6388df (diff)
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Fix ldbl-128ibm roundl for non-default rounding modes (bug 19594).
The ldbl-128ibm implementation of roundl is only correct in
round-to-nearest mode (in other modes, there are incorrect results and
overflow exceptions in some cases).  This patch reimplements it along
the lines used for floorl, ceill and truncl, using __round on the high
part, and on the low part if the high part is an integer, and then
adjusting in the cases where this is incorrect.

Tested for powerpc.

	[BZ #19594]
	* sysdeps/ieee754/ldbl-128ibm/s_roundl.c (__roundl): Use __round
	on high and low parts then adjust result and use
	ldbl_canonicalize_int if needed.
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