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AC_CXX_STATIC_CAST
1.2 (2004/02/15) 0.5.57 : C++_Support
Todd Veldhuizen and Luc Maisonobe <luc@spaceroots.org>
If the compiler supports static_cast<>, define HAVE_STATIC_CAST.
AC_DEFUN([AC_CXX_STATIC_CAST],
[AC_CACHE_CHECK(whether the compiler supports static_cast<>,
ac_cv_cxx_static_cast,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([#include <typeinfo>
class Base { public : Base () {} virtual void f () = 0; };
class Derived : public Base { public : Derived () {} virtual void f () {} };
int g (Derived&) { return 0; }],[
Derived d; Base& b = d; Derived& s = static_cast<Derived&> (b); return g (s);],
ac_cv_cxx_static_cast=yes, ac_cv_cxx_static_cast=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_static_cast" = yes; then
AC_DEFINE(HAVE_STATIC_CAST,,
[define if the compiler supports static_cast<>])
fi
])