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authorRajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>2016-06-16 21:21:26 +0530
committerRajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>2016-06-16 21:37:45 +0530
commit41a359e22f3a85a570bd5fd94496d02959fe8394 (patch)
treeb07e8945a063a025f34f92e910bf8fb1e2e220d5 /NEWS
parentf45eb078922a5c64343a8da2d17fec54c27f8704 (diff)
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Add nextup and nextdown math functions
TS 18661 adds nextup and nextdown functions alongside nextafter to provide
support for float128 equivalent to it.  This patch adds nextupl, nextup,
nextupf, nextdownl, nextdown and nextdownf to libm before float128 support.

The nextup functions return the next representable value in the direction of
positive infinity and the nextdown functions return the next representable
value in the direction of negative infinity.  These are currently enabled
as GNU extensions.
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diff --git a/NEWS b/NEWS
index 9b5d9fe8e0..e2737d5f47 100644
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+++ b/NEWS
@@ -40,6 +40,13 @@ Version 2.24
   done anything in over 16 years.  Scripts using this option can safely
   drop it.
 
+* nextupl, nextup, nextupf, nextdownl, nextdown and nextdownf are added to
+  libm.  They are defined by TS 18661 and IEEE754-2008.  The nextup functions
+  return the next representable value in the direction of positive infinity
+  and the nextdown functions return the next representable value in the
+  direction of negative infinity.  These are currently enabled as GNU
+  extensions.
+
 Security related changes:
 
 * An unnecessary stack copy in _nss_dns_getnetbyname_r was removed.  It