re PR libstdc++/13943 (call of overloaded `llabs(int)' is ambiguous)

2005-05-26  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/13943
	* include/c_std/std_cstdlib.h: Do not open code llabs and lldiv,
	available when _GLIBCXX_USE_C99 is defined.
	* testsuite/26_numerics/cstdlib/13943.cc: New.

	* acinclude.m4 ([GLIBCXX_ENABLE_C99]): For completeness, check
	also strtoll and strtoull for ac_c99_stdlib.
	* configure: Regenerate.

From-SVN: r100205

5 files changed, 78 insertions, 14 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index e1995d5..6314115 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,14 @@
+2005-05-26  Paolo Carlini  <pcarlini@suse.de>
+
+	PR libstdc++/13943
+	* include/c_std/std_cstdlib.h: Do not open code llabs and lldiv,
+	available when _GLIBCXX_USE_C99 is defined.
+	* testsuite/26_numerics/cstdlib/13943.cc: New.
+
+	* acinclude.m4 ([GLIBCXX_ENABLE_C99]): For completeness, check
+	also strtoll and strtoull for ac_c99_stdlib.
+	* configure: Regenerate.
+
 2005-05-25  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* config/linker-map.gnu: Add linkage support for no extern templates.
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 757a0e8..86a52e5 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -879,12 +879,14 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
   AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
   AC_CACHE_VAL(ac_c99_stdlib, [
   AC_TRY_COMPILE([#include <stdlib.h>],
-                 [char* tmp; 
-	    	  strtof("gnu", &tmp); 
+                 [char* tmp;
+	    	  strtof("gnu", &tmp);
 		  strtold("gnu", &tmp);
-                  llabs(10); 
-		  lldiv(10,1); 
-		  atoll("10"); 
+	          strtoll("gnu", &tmp, 10);
+	          strtoull("gnu", &tmp, 10);
+	          llabs(10);
+		  lldiv(10,1);
+		  atoll("10");
 		  _Exit(0);
 		  lldiv_t mydivt;],[ac_c99_stdlib=yes], [ac_c99_stdlib=no])
   ])
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 9b4cc23..9e0d61d 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -7059,7 +7059,9 @@ main ()
 char* tmp;
 	    	  strtof("gnu", &tmp);
 		  strtold("gnu", &tmp);
-                  llabs(10);
+	          strtoll("gnu", &tmp, 10);
+	          strtoull("gnu", &tmp, 10);
+	          llabs(10);
 		  lldiv(10,1);
 		  atoll("10");
 		  _Exit(0);
diff --git a/libstdc++-v3/include/c_std/std_cstdlib.h b/libstdc++-v3/include/c_std/std_cstdlib.h
index 3fde655..cf91f27 100644
--- a/libstdc++-v3/include/c_std/std_cstdlib.h
+++ b/libstdc++-v3/include/c_std/std_cstdlib.h
@@ -1,6 +1,6 @@
 // -*- C++ -*- forwarding header.
 
-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005
 // Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
@@ -168,17 +168,14 @@ namespace __gnu_cxx
   inline long long
   abs(long long __x) { return __x >= 0 ? __x : -__x; }
 
-  inline long long
-  llabs(long long __x) { return __x >= 0 ? __x : -__x; }
-
 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
+  using ::llabs;
+
   inline lldiv_t
   div(long long __n, long long __d)
   { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
 
-  inline lldiv_t
-  lldiv(long long __n, long long __d)
-  { lldiv_t __q; __q.quot = __n / __d; __q.rem = __n % __d; return __q; }
+  using ::lldiv;
 #endif
 
 #if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
@@ -204,8 +201,8 @@ namespace std
 #endif
   using __gnu_cxx::_Exit;
   using __gnu_cxx::abs;
-  using __gnu_cxx::llabs;
 #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
+  using __gnu_cxx::llabs;
   using __gnu_cxx::div;
   using __gnu_cxx::lldiv;
 #endif
diff --git a/libstdc++-v3/testsuite/26_numerics/cstdlib/13943.cc b/libstdc++-v3/testsuite/26_numerics/cstdlib/13943.cc
new file mode 100644
index 0000000..920ddcc
--- /dev/null
+++ b/libstdc++-v3/testsuite/26_numerics/cstdlib/13943.cc
@@ -0,0 +1,52 @@
+// Copyright (C) 2005 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 2, 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 COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <cstdlib>
+#include <testsuite_hooks.h>
+
+#if _GLIBCXX_USE_C99
+// libstdc++/13943
+void test01()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;
+
+  VERIFY( llabs(-3) == 3 );
+  
+  lldiv_t q = lldiv(6, 4);
+  VERIFY( q.quot == 1 );
+  VERIFY( q.rem == 2 );
+}
+#endif
+
+int main()
+{
+#if _GLIBCXX_USE_C99
+  test01();
+#endif
+  return 0;
+}