autoconf/m4/cxx_std_iterator.m4

   1 # Check for standard iterator extension.  This is modified from
   2 # http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
   3 AC_DEFUN([AC_CXX_HAVE_STD_ITERATOR],
   4 [AC_CACHE_CHECK(whether the compiler has the standard iterator,
   5 ac_cv_cxx_have_std_iterator,
   6 [AC_REQUIRE([AC_CXX_NAMESPACES])
   7   AC_LANG_PUSH([C++])
   8   AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
   9     [[#include <iterator>
  10 #ifdef HAVE_NAMESPACES
  11 using namespace std;
  12 #endif]],
  13   [[iterator<int,int,int> t; return 0;]])],
  14   ac_cv_cxx_have_std_iterator=yes,
  15   ac_cv_cxx_have_std_iterator=no)
  16   AC_LANG_POP([C++])
  17 ])
  18 HAVE_STD_ITERATOR=0
  19 if test "$ac_cv_cxx_have_std_iterator" = yes
  20 then
  21    HAVE_STD_ITERATOR=1
  22 fi
  23 AC_SUBST(HAVE_STD_ITERATOR)])
  24
  25