New module 'truncl-ieee'.

* modules/truncl-ieee: New file.
* modules/truncl-ieee-tests: New file.
* tests/test-truncl-ieee.c: New file, based on tests/test-truncl.c.
* tests/test-truncl.c (main): Remove signbit tests.
* modules/truncl-tests (Depends-on): Remove signbit.
* doc/posix-functions/truncl.texi: Mention the new module.

diff --git a/ChangeLog b/ChangeLog
index 7e0c502008427bf9e9baee4ff9fd39f2fd4ab2db..0208548bbf4e57e20c7783189ad73dcb41b82efd 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2010-12-21  Bruno Haible  <bruno@clisp.org>
+
+       New module 'truncl-ieee'.
+       * modules/truncl-ieee: New file.
+       * modules/truncl-ieee-tests: New file.
+       * tests/test-truncl-ieee.c: New file, based on tests/test-truncl.c.
+       * tests/test-truncl.c (main): Remove signbit tests.
+       * modules/truncl-tests (Depends-on): Remove signbit.
+       * doc/posix-functions/truncl.texi: Mention the new module.
+
 2010-12-21  Bruno Haible  <bruno@clisp.org>
 
        New module 'ceill-ieee'.

diff --git a/doc/posix-functions/truncl.texi b/doc/posix-functions/truncl.texi
index 8afac2f358eaaf07f0891af3aeec4646e71d3bfa..442704ec060aa0c561e82794c1da7f3686972185 100644 (file)
--- a/doc/posix-functions/truncl.texi
+++ b/doc/posix-functions/truncl.texi
@@ -4,7 +4,7 @@
 
 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/truncl.html}
 
-Gnulib module: truncl
+Gnulib module: truncl or truncl-ieee
 
 Portability problems fixed by Gnulib:
 @itemize

diff --git a/modules/truncl-ieee b/modules/truncl-ieee
new file mode 100644 (file)
index 0000000..b3acf18
--- /dev/null
+++ b/modules/truncl-ieee
@@ -0,0 +1,23 @@
+Description:
+truncl() function according to ISO C 99 with IEC 60559.
+
+Files:
+
+Depends-on:
+truncl
+
+configure.ac:
+
+Makefile.am:
+
+Include:
+<math.h>
+
+Link:
+$(TRUNCL_LIBM)
+
+License:
+LGPL
+
+Maintainer:
+Bruno Haible

diff --git a/modules/truncl-ieee-tests b/modules/truncl-ieee-tests
new file mode 100644 (file)
index 0000000..a2fed3f
--- /dev/null
+++ b/modules/truncl-ieee-tests
@@ -0,0 +1,16 @@
+Files:
+tests/test-truncl-ieee.c
+tests/minus-zero.h
+tests/macros.h
+
+Depends-on:
+fpucw
+float
+signbit
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-truncl-ieee
+check_PROGRAMS += test-truncl-ieee
+test_truncl_ieee_LDADD = $(LDADD) @TRUNCL_LIBM@

diff --git a/modules/truncl-tests b/modules/truncl-tests
index 47276e2c1f59a5e053e1f77efd6bb1d82fabff94..01bcf73921c524f2a488117f24f81c9828aac891 100644 (file)
--- a/modules/truncl-tests
+++ b/modules/truncl-tests
@@ -9,7 +9,6 @@ Depends-on:
 fpucw
 isnanl-nolibm
 float
-signbit
 
 configure.ac:
 

diff --git a/tests/test-truncl-ieee.c b/tests/test-truncl-ieee.c
new file mode 100644 (file)
index 0000000..de6c9ad
--- /dev/null
+++ b/tests/test-truncl-ieee.c
@@ -0,0 +1,37 @@
+/* Test of rounding towards zero.
+   Copyright (C) 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "fpucw.h"
+#include "minus-zero.h"
+#include "macros.h"
+
+int
+main ()
+{
+  DECL_LONG_DOUBLE_ROUNDING
+
+  BEGIN_LONG_DOUBLE_ROUNDING ();
+
+  /* Zero.  */
+  ASSERT (!signbit (truncl (0.0L)));
+  ASSERT (!!signbit (truncl (minus_zerol)) == !!signbit (minus_zerol));
+
+  return 0;
+}

diff --git a/tests/test-truncl.c b/tests/test-truncl.c
index f2a9644eac0f47d4ec899a9248d68bc4ce36307a..ab1f4443f36d652b6318adf9d72b66011a5311ba 100644 (file)
--- a/tests/test-truncl.c
+++ b/tests/test-truncl.c
@@ -40,9 +40,7 @@ main ()
 
   /* Zero.  */
   ASSERT (truncl (0.0L) == 0.0L);
-  ASSERT (!signbit (truncl (0.0L)));
   ASSERT (truncl (minus_zerol) == 0.0L);
-  ASSERT (!!signbit (minus_zerol) == !!signbit (truncl (minus_zerol)));
   /* Positive numbers.  */
   ASSERT (truncl (0.3L) == 0.0L);
   ASSERT (truncl (0.7L) == 0.0L);