Macro: ac_cxx_template_scoped_argument_matching

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# ac_cxx_template_scoped_argument_matching

## Synopsis

`AC_CXX_TEMPLATE_SCOPED_ARGUMENT_MATCHING`

## Version

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

## Author

Luc Maisonobe

## Description

If the compiler supports function matching with argument types which are template scope-qualified, define HAVE_TEMPLATE_SCOPED_ARGUMENT_MATCHING.

## M4 Source Code

    AC_DEFUN([AC_CXX_TEMPLATE_SCOPED_ARGUMENT_MATCHING],
    [AC_CACHE_CHECK(whether the compiler supports function matching with argument types which are template scope-qualified,
    ac_cv_cxx_template_scoped_argument_matching,
    [AC_REQUIRE([AC_CXX_TYPENAME])
     AC_LANG_SAVE
     AC_LANG_CPLUSPLUS
     AC_TRY_COMPILE([
    #ifndef HAVE_TYPENAME
     #define typename
    #endif
    template<class X> class A { public : typedef X W; };
    template<class Y> class B {};
    template<class Y> void operator+(B<Y> d1, typename Y::W d2) {}
    ],[B<A<float> > z; z + 0.5f; return 0;],
     ac_cv_cxx_template_scoped_argument_matching=yes, ac_cv_cxx_template_scoped_argument_matching=no)
     AC_LANG_RESTORE
    ])
    if test "$ac_cv_cxx_template_scoped_argument_matching" = yes; then
      AC_DEFINE(HAVE_TEMPLATE_SCOPED_ARGUMENT_MATCHING,,
                [define if the compiler supports function matching with argument types which are template scope-qualified])
    fi
    ])