文件操作 - ax_cxx_templates_as_template_arguments.m4
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文件: /usr/share/aclocal/ax_cxx_templates_as_template_arguments.m4
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# =========================================================================================== # https://www.gnu.org/software/autoconf-archive/ax_cxx_templates_as_template_arguments.html # =========================================================================================== # # SYNOPSIS # # AX_CXX_TEMPLATES_AS_TEMPLATE_ARGUMENTS # # DESCRIPTION # # If the compiler supports templates as template arguments, define # HAVE_TEMPLATES_AS_TEMPLATE_ARGUMENTS. # # 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_TEMPLATES_AS_TEMPLATE_ARGUMENTS], [AX_CXX_TEMPLATES_AS_TEMPLATE_ARGUMENTS]) AC_DEFUN([AX_CXX_TEMPLATES_AS_TEMPLATE_ARGUMENTS], [AC_CACHE_CHECK(whether the compiler supports templates as template arguments, ax_cv_cxx_templates_as_template_arguments, [AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([ template<class T> class allocator { public : allocator() {}; }; template<class X, template<class Y> class T_alloc> class A { public : A() {} private : T_alloc<X> alloc_; }; ],[A<double, allocator> x; return 0;], ax_cv_cxx_templates_as_template_arguments=yes, ax_cv_cxx_templates_as_template_arguments=no) AC_LANG_RESTORE ]) if test "$ax_cv_cxx_templates_as_template_arguments" = yes; then AC_DEFINE(HAVE_TEMPLATES_AS_TEMPLATE_ARGUMENTS,, [define if the compiler supports templates as template arguments]) fi ])
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