cmath (abs(_Tp)): Add.

2009-07-23  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/c_std/cmath (abs(_Tp)): Add.
	* include/c_global/cmath (abs(_Tp)): Likewise.
	* testsuite/26_numerics/headers/cmath/overloads.cc: Extend.

From-SVN: r150022

4 files changed, 43 insertions, 6 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index a7303bd..7ca37c7 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,11 @@
 2009-07-23  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	* include/c_std/cmath (abs(_Tp)): Add.
+	* include/c_global/cmath (abs(_Tp)): Likewise.
+	* testsuite/26_numerics/headers/cmath/overloads.cc: Extend.
+
+2009-07-23  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	* doc/html/ext/lwg-closed.html: Update to R65.
 	* doc/html/ext/lwg-defects.html: Likewise.
 	* doc/html/ext/lwg-active.html: Likewise.
diff --git a/libstdc++-v3/include/c_global/cmath b/libstdc++-v3/include/c_global/cmath
index 9a63a01..a5c31c4 100644
--- a/libstdc++-v3/include/c_global/cmath
+++ b/libstdc++-v3/include/c_global/cmath
@@ -102,6 +102,12 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
   abs(long double __x)
   { return __builtin_fabsl(__x); }
 
+  template<typename _Tp>
+    inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
+					   double>::__type
+    abs(_Tp __x)
+    { return __builtin_fabs(__x); }
+
   using ::acos;
 
   inline float
diff --git a/libstdc++-v3/include/c_std/cmath b/libstdc++-v3/include/c_std/cmath
index a0bebc9..3ee1393 100644
--- a/libstdc++-v3/include/c_std/cmath
+++ b/libstdc++-v3/include/c_std/cmath
@@ -93,6 +93,12 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
   abs(long double __x)
   { return __builtin_fabsl(__x); }
 
+  template<typename _Tp>
+    inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
+					   double>::__type
+    abs(_Tp __x)
+    { return __builtin_fabs(__x); }
+
   using ::acos;
 
   inline float
@@ -120,8 +126,8 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
   { return __builtin_asinl(__x); }
 
   template<typename _Tp>
-  inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
-					 double>::__type
+    inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value,
+					   double>::__type
     asin(_Tp __x)
     { return __builtin_asin(__x); }
 
@@ -136,8 +142,8 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
   { return __builtin_atanl(__x); }
 
   template<typename _Tp>
-  inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
-					 double>::__type
+    inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
+					   double>::__type
     atan(_Tp __x)
     { return __builtin_atan(__x); }
 
@@ -293,8 +299,8 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
   template<typename _Tp>
     inline typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, 
 					   double>::__type
-  ldexp(_Tp __x, int __exp)
-  { return __builtin_ldexp(__x, __exp); }
+    ldexp(_Tp __x, int __exp)
+    { return __builtin_ldexp(__x, __exp); }
 
   using ::log;
 
diff --git a/libstdc++-v3/testsuite/26_numerics/headers/cmath/overloads.cc b/libstdc++-v3/testsuite/26_numerics/headers/cmath/overloads.cc
index 4d41a96..4418bc3 100644
--- a/libstdc++-v3/testsuite/26_numerics/headers/cmath/overloads.cc
+++ b/libstdc++-v3/testsuite/26_numerics/headers/cmath/overloads.cc
@@ -1,3 +1,21 @@
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library 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, or (at your option)
+// any later version.
+
+// This library 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 library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
 // PR 3181
 // Origin: pete@toyon.com
 
@@ -8,6 +26,7 @@ int main()
   int i = -1;
   int j = 9;
   double ans;
+  ans = std::abs(i);
   ans = std::acos(i);
   ans = std::asin(i);
   ans = std::atan(i);