This is the mail archive of the glibc-cvs@sourceware.org mailing list for the glibc project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

GNU C Library master sources branch, master, updated. glibc-2.10-312-g2df4be8


This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".

The branch, master has been updated
       via  2df4be8c3545f6158e468660a73f794573fb6f07 (commit)
      from  15e7f0a44d6f17eb445f7d5f02ace7ec66306d7a (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=2df4be8c3545f6158e468660a73f794573fb6f07

commit 2df4be8c3545f6158e468660a73f794573fb6f07
Author: Ulrich Drepper <drepper@redhat.com>
Date:   Wed Aug 26 00:51:45 2009 -0700

    Add isinf optimized for 64-bit.

diff --git a/ChangeLog b/ChangeLog
index c28272c..18a5b5d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2009-08-26  Ulrich Drepper  <drepper@redhat.com>
 
+	* sysdeps/ieee754/dbl-64/wordsize-64/s_isinf.c: New file.
+
 	* sysdeps/ieee754/dbl-64/wordsize-64/s_isnan.c: New file.
 
 2009-08-25  Ulrich Drepper  <drepper@redhat.com>
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_isinf.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_isinf.c
new file mode 100644
index 0000000..c48e979
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_isinf.c
@@ -0,0 +1,30 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changed to return -1 for -Inf by Ulrich Drepper <drepper@cygnus.com>.
+ * Public domain.
+ */
+
+/*
+ * isinf(x) returns 1 is x is inf, -1 if x is -inf, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+int
+__isinf (double x)
+{
+	int64_t ix;
+	EXTRACT_WORDS64(ix,x);
+	int64_t t = ix & UINT64_C(0x7fffffffffffffff);
+	t ^= UINT64_C(0x7ff0000000000000);
+	t |= -t;
+	return ~(t >> 63) & (ix >> 62);
+}
+hidden_def (__isinf)
+weak_alias (__isinf, isinf)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__isinf, __isinfl)
+weak_alias (__isinf, isinfl)
+#endif

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                          |    2 ++
 sysdeps/ieee754/dbl-64/{ => wordsize-64}/s_isinf.c |   15 ++++++---------
 2 files changed, 8 insertions(+), 9 deletions(-)
 copy sysdeps/ieee754/dbl-64/{ => wordsize-64}/s_isinf.c (63%)


hooks/post-receive
-- 
GNU C Library master sources


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]