AC_CXX_TEMPLATE_KEYWORD_QUALIFIER
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Todd Veldhuizen
Bernardo Innocenti
Luc Maisonobe <luc@spaceroots.org>
AllPermissive
Copying and distribution of this file, with or
without modification, are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. Users of this software should generally follow the
principles of the
MIT License includings its disclaimer.
cryp.to ac-archive's C++ Support (released)
If the compiler supports use of the template keyword as a
qualifier, define HAVE_TEMPLATE_KEYWORD_QUALIFIER.
AC_DEFUN([AC_CXX_TEMPLATE_KEYWORD_QUALIFIER],
[AC_CACHE_CHECK(whether the compiler supports use of the template keyword as a qualifier,
ac_cv_cxx_template_keyword_qualifier,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([
class X
{
public:
template<int> void member() {}
template<int> static void static_member() {}
};
template<class T> void f(T* p)
{
p->template member<200>(); // OK: < starts template argument
T::template static_member<100>(); // OK: < starts explicit qualification
}
],[X x; f(&x); return 0;],
ac_cv_cxx_template_keyword_qualifier=yes, ac_cv_cxx_template_keyword_qualifier=no)
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_template_keyword_qualifier" = yes; then
AC_DEFINE(HAVE_TEMPLATE_KEYWORD_QUALIFIER,,
[define if the compiler supports use of the template keyword as a qualifier])
fi
])