From 12cc2fcdb47f9d7a54fda83e231f885c0425a2a9 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Mon, 10 Oct 2011 20:43:38 +0200 Subject: Implement __isinf_nsl for IBM long double --- ChangeLog | 4 ++++ sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c | 16 ++++++++++++++++ 2 files changed, 20 insertions(+) create mode 100644 sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c diff --git a/ChangeLog b/ChangeLog index de8e8aa3a4..484c139ae1 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,7 @@ +2011-10-10 Andreas Schwab + + * sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c: New file. + 2011-10-09 Ulrich Drepper * po/ja.po: Update from translation team. diff --git a/sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c b/sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c new file mode 100644 index 0000000000..edeaba5f7c --- /dev/null +++ b/sysdeps/ieee754/ldbl-128ibm/s_isinf_nsl.c @@ -0,0 +1,16 @@ +/* + * __isinf_nsl(x) returns != 0 if x is ±inf, else 0; + * no branching! + */ + +#include "math.h" +#include "math_private.h" + +int +__isinf_nsl (long double x) +{ + int64_t hx,lx; + GET_LDOUBLE_WORDS64(hx,lx,x); + return !((lx & 0x7fffffffffffffffLL) + | ((hx & 0x7fffffffffffffffLL) ^ 0x7ff0000000000000LL)); +} -- cgit 1.4.1