Date: Tue, 14 Jan 2020 19:47:52 +0100 From: Szabolcs Nagy <nsz@...t70.net> To: musl@...ts.openwall.com Subject: Re: [PATCH] math: move i386 sqrtf to C * Alexander Monakov <amonakov@...ras.ru> [2020-01-14 20:59:21 +0300]: > On Thu, 9 Jan 2020, Szabolcs Nagy wrote: > > > c99 required cast at return, but that was considered to be > > a bug so in c11 it's no longer required: return now must > > round > > This is the interpretation that GCC uses (return statements > imply removal of excess precision), but I wonder where the > standard actually says that: afaics N1570 still has the same > footnote in 220.127.116.11 that ends with "A cast may be used to > remove this extra range and precision." it's in annex f http://port70.net/~nsz/c/c11/n1570.html#F.6
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