llvm-6502/autoconf/m4/cxx_std_iterator.m4
2004-09-19 22:31:49 +00:00

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# Check for standard iterator extension. This is modified from
# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
AC_DEFUN([AC_CXX_HAVE_STD_ITERATOR],
[AC_CACHE_CHECK(whether the compiler has the standard iterator,
ac_cv_cxx_have_std_iterator,
[AC_REQUIRE([AC_CXX_NAMESPACES])
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#include <iterator>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif]],
[[iterator<int,int,int> t; return 0;]])],
ac_cv_cxx_have_std_iterator=yes,
ac_cv_cxx_have_std_iterator=no)
AC_LANG_POP([C++])
])
HAVE_STD_ITERATOR=0
if test "$ac_cv_cxx_have_std_iterator" = yes
then
HAVE_STD_ITERATOR=1
fi
AC_SUBST(HAVE_STD_ITERATOR)])