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- # ============================================================================
- # https://www.gnu.org/software/autoconf-archive/ax_cxx_member_templates.html
- # ============================================================================
- #
- # SYNOPSIS
- #
- # AX_CXX_MEMBER_TEMPLATES
- #
- # DESCRIPTION
- #
- # If the compiler supports member templates, define HAVE_MEMBER_TEMPLATES.
- #
- # LICENSE
- #
- # Copyright (c) 2008 Todd Veldhuizen
- # Copyright (c) 2008 Luc Maisonobe <luc@spaceroots.org>
- #
- # 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. This file is offered as-is, without any
- # warranty.
-
- #serial 7
-
- AU_ALIAS([AC_CXX_MEMBER_TEMPLATES], [AX_CXX_MEMBER_TEMPLATES])
- AC_DEFUN([AX_CXX_MEMBER_TEMPLATES],
- [AC_CACHE_CHECK(whether the compiler supports member templates,
- ax_cv_cxx_member_templates,
- [AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- AC_TRY_COMPILE([
- template<class T, int N> class A
- { public:
- template<int N2> A<T,N> operator=(const A<T,N2>& z) { return A<T,N>(); }
- };],[A<double,4> x; A<double,7> y; x = y; return 0;],
- ax_cv_cxx_member_templates=yes, ax_cv_cxx_member_templates=no)
- AC_LANG_RESTORE
- ])
- if test "$ax_cv_cxx_member_templates" = yes; then
- AC_DEFINE(HAVE_MEMBER_TEMPLATES,,[define if the compiler supports member templates])
- fi
- ])
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