From 572676160d5639edc0ecb663147bd291841458d1 Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <thomas@codesourcery.com>
Date: Tue, 2 Apr 2013 13:51:02 +0200
Subject: New <math.h> macro named issignaling to check for a signaling NaN
 (sNaN).

It is based on draft TS 18661 and currently enabled as a GNU extension.
---
 manual/arith.texi | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'manual/arith.texi')

diff --git a/manual/arith.texi b/manual/arith.texi
index d060ff9..ce8844e 100644
--- a/manual/arith.texi
+++ b/manual/arith.texi
@@ -387,6 +387,14 @@ to
 @end smallexample
 @end deftypefn
 
+@comment math.h
+@comment GNU
+@deftypefn {Macro} int issignaling (@emph{float-type} @var{x})
+This macro returns a nonzero value if @var{x} is a signaling NaN
+(sNaN).  It is based on draft TS 18661 and currently enabled as a GNU
+extension.
+@end deftypefn
+
 Another set of floating-point classification functions was provided by
 BSD.  @Theglibc{} also supports these functions; however, we
 recommend that you use the ISO C99 macros in new code.  Those are standard
-- 
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