2016-02-04 Jonathan Wakely <jwakely@redhat.com>
+ PR libstdc++/69626
+ * acinclude.m4 (GLIBCXX_ENABLE_C99): Check C99 stdlib.h functions
+ with -std=c++98 and define _GLIBCXX98_USE_C99_STDLIB.
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+ * testsuite/21_strings/c_strings/char/69626.cc: New.
+
* doc/html/index.html: Regenerate.
* doc/xml/manual/containers.xml: Add cross-reference to Dual ABI.
in <cstdio> in namespace std for C++98.])
fi
+ # Check for the existence in <stdlib.h> of lldiv_t, et. al.
+ AC_MSG_CHECKING([for ISO C99 support in <stdlib.h> for C++98])
+ AC_CACHE_VAL(glibcxx_cv_c99_stdlib_cxx98, [
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <stdlib.h>
+ volatile float f;
+ volatile long double ld;
+ volatile unsigned long long ll;
+ lldiv_t mydivt;],
+ [char* tmp;
+ f = strtof("gnu", &tmp);
+ ld = strtold("gnu", &tmp);
+ ll = strtoll("gnu", &tmp, 10);
+ ll = strtoull("gnu", &tmp, 10);
+ ll = llabs(10);
+ mydivt = lldiv(10,1);
+ ll = mydivt.quot;
+ ll = mydivt.rem;
+ ll = atoll("10");
+ _Exit(0);
+ ], [glibcxx_cv_c99_stdlib_cxx98=yes], [glibcxx_cv_c99_stdlib_cxx98=no])
+ ])
+ AC_MSG_RESULT($glibcxx_cv_c99_stdlib_cxx98)
+ if test x"$glibcxx_cv_c99_stdlib_cxx98" = x"yes"; then
+ AC_DEFINE(_GLIBCXX98_USE_C99_STDLIB, 1,
+ [Define if C99 functions or macros in <stdlib.h> should be imported
+ in <cstdlib> in namespace std for C++98.])
+ fi
+
# Check for the existence in <wchar.h> of wcstold, etc.
if test x"$ac_has_wchar_h" = xyes &&
test x"$ac_has_wctype_h" = xyes; then
<cstdio> in namespace std for C++98. */
#undef _GLIBCXX98_USE_C99_STDIO
+/* Define if C99 functions or macros in <stdlib.h> should be imported in
+ <cstdlib> in namespace std for C++98. */
+#undef _GLIBCXX98_USE_C99_STDLIB
+
/* Define if C99 functions or macros in <wchar.h> should be imported in
<cwchar> in namespace std for C++98. */
#undef _GLIBCXX98_USE_C99_WCHAR
fi
+ # Check for the existence in <stdlib.h> of lldiv_t, et. al.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C99 support in <stdlib.h> for C++98" >&5
+$as_echo_n "checking for ISO C99 support in <stdlib.h> for C++98... " >&6; }
+ if test "${glibcxx_cv_c99_stdlib_cxx98+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ if test x$gcc_no_link = xyes; then
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdlib.h>
+ volatile float f;
+ volatile long double ld;
+ volatile unsigned long long ll;
+ lldiv_t mydivt;
+int
+main ()
+{
+char* tmp;
+ f = strtof("gnu", &tmp);
+ ld = strtold("gnu", &tmp);
+ ll = strtoll("gnu", &tmp, 10);
+ ll = strtoull("gnu", &tmp, 10);
+ ll = llabs(10);
+ mydivt = lldiv(10,1);
+ ll = mydivt.quot;
+ ll = mydivt.rem;
+ ll = atoll("10");
+ _Exit(0);
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+ glibcxx_cv_c99_stdlib_cxx98=yes
+else
+ glibcxx_cv_c99_stdlib_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+else
+ if test x$gcc_no_link = xyes; then
+ as_fn_error "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdlib.h>
+ volatile float f;
+ volatile long double ld;
+ volatile unsigned long long ll;
+ lldiv_t mydivt;
+int
+main ()
+{
+char* tmp;
+ f = strtof("gnu", &tmp);
+ ld = strtold("gnu", &tmp);
+ ll = strtoll("gnu", &tmp, 10);
+ ll = strtoull("gnu", &tmp, 10);
+ ll = llabs(10);
+ mydivt = lldiv(10,1);
+ ll = mydivt.quot;
+ ll = mydivt.rem;
+ ll = atoll("10");
+ _Exit(0);
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+ glibcxx_cv_c99_stdlib_cxx98=yes
+else
+ glibcxx_cv_c99_stdlib_cxx98=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_c99_stdlib_cxx98" >&5
+$as_echo "$glibcxx_cv_c99_stdlib_cxx98" >&6; }
+ if test x"$glibcxx_cv_c99_stdlib_cxx98" = x"yes"; then
+
+$as_echo "#define _GLIBCXX98_USE_C99_STDLIB 1" >>confdefs.h
+
+ fi
+
# Check for the existence in <wchar.h> of wcstold, etc.
if test x"$ac_has_wchar_h" = xyes &&
test x"$ac_has_wctype_h" = xyes; then
--- /dev/null
+// Copyright (C) 2016 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/>.
+
+// { dg-options "-std=gnu++98" }
+// { dg-do compile { target *-*-linux-gnu } }
+
+#include <cstdlib>
+
+long long test01()
+{
+ char* ep;
+ return std::strtoll("0", &ep, 10);
+}