Macro: ac_cxx_static_cast

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# ac_cxx_static_cast

## Synopsis

`AC_CXX_STATIC_CAST`

## Version

1.1.1.1 (2001/07/26) C++_Support @ ac-archive-0.5.32

## Author

Luc Maisonobe

## Description

If the compiler supports static_cast<>, define HAVE_STATIC_CAST.

## M4 Source Code

    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
    ])