26 lines
1.0 KiB
Plaintext
26 lines
1.0 KiB
Plaintext
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dnl Available from the GNU Autoconf Macro Archive at:
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dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_template_scoped_argument_matching.html
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dnl
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AC_DEFUN([AC_CXX_TEMPLATE_SCOPED_ARGUMENT_MATCHING],
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[AC_CACHE_CHECK(whether the compiler supports function matching with argument types which are template scope-qualified,
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ac_cv_cxx_template_scoped_argument_matching,
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[AC_REQUIRE([AC_CXX_TYPENAME])
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE([
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#ifndef HAVE_TYPENAME
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#define typename
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#endif
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template<class X> class A { public : typedef X W; };
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template<class Y> class B {};
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template<class Y> void operator+(B<Y> d1, typename Y::W d2) {}
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],[B<A<float> > z; z + 0.5f; return 0;],
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ac_cv_cxx_template_scoped_argument_matching=yes, ac_cv_cxx_template_scoped_argument_matching=no)
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AC_LANG_RESTORE
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])
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if test "$ac_cv_cxx_template_scoped_argument_matching" = yes; then
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AC_DEFINE(HAVE_TEMPLATE_SCOPED_ARGUMENT_MATCHING,,
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[define if the compiler supports function matching with argument types which are template scope-qualified])
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fi
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])
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