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ac_cxx_const_cast

Synopsis

AC_CXX_CONST_CAST

Description

If the compiler supports const_cast<>, define HAVE_CONST_CAST.

Version

1.2 (last modified: 2000-07-19)

Author

Luc Maisonobe

M4 Source Code

AC_DEFUN([AC_CXX_CONST_CAST],
[AC_CACHE_CHECK(whether the compiler supports const_cast<>,
ac_cv_cxx_const_cast,
[AC_LANG_SAVE
 AC_LANG_CPLUSPLUS
 AC_TRY_COMPILE(,[int x = 0;const int& y = x;int& z = const_cast<int&>(y);return z;],
 ac_cv_cxx_const_cast=yes, ac_cv_cxx_const_cast=no)
 AC_LANG_RESTORE
])
if test "$ac_cv_cxx_const_cast" = yes; then
  AC_DEFINE(HAVE_CONST_CAST,,[define if the compiler supports const_cast<>])
fi
])

Copyright

GNU General Public License with this special exception.