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Cygwin: math: Properly propagate input NANs in a few functions

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While the C99 standard doesn't explicitly require this, the standard
says it is recommended (F.9.13).

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö
2019-07-25 00:13:13 +03:00
committed by Corinna Vinschen
parent 8dee6fe6a5
commit f7f296b46f
6 changed files with 20 additions and 8 deletions
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3
winsup/cygwin/math/erfl.c
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@@ -243,6 +243,9 @@ long double erfcl(long double a)
if (isinf (a))
return (signbit(a) ? 2.0 : 0.0);
if (isnan (a))
return (a);
x = fabsl (a);
if (x < 1.0L)