opm-core/m4/cxx0x_nullptr.m4
Roland Kaufmann 2a43bd305a Add macros for testing C++0x/11 support in compiler
These files are shamelessly ripped from dune-common/m4 (e28ca3)
2012-10-24 10:23:51 +02:00

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AC_DEFUN([NULLPTR_CHECK],[
AC_CACHE_CHECK([whether nullptr is supported], dune_cv_nullptr_support, [
AC_REQUIRE([AC_PROG_CXX])
AC_REQUIRE([GXX0X])
AC_LANG_PUSH([C++])
AC_TRY_COMPILE([],[
char* ch = nullptr;
if(ch!=nullptr) { ; }
],
dune_cv_nullptr_support=yes,
dune_cv_nullptr_support=no)
AC_LANG_POP
])
if test "x$dune_cv_nullptr_support" = xyes; then
AC_DEFINE(HAVE_NULLPTR, 1, [Define to 1 if nullptr is supported])
fi
])