Macro: ac_cxx_partial_specialization

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Synopsis

  `AC_CXX_PARTIAL_SPECIALIZATION`

Version

  1.1.1.1 (2001/07/26) C++_Support @ ac-archive-0.5.39

Author

  Luc Maisonobe

Description

  If the compiler supports partial specialization, define HAVE_PARTIAL_SPECIALIZATION.

M4 Source Code

      AC_DEFUN([AC_CXX_PARTIAL_SPECIALIZATION],
      [AC_CACHE_CHECK(whether the compiler supports partial specialization,
      ac_cv_cxx_partial_specialization,
      [AC_LANG_SAVE
       AC_LANG_CPLUSPLUS
       AC_TRY_COMPILE([
      template<class T, int N> class A            { public : enum e { z = 0 }; };
      template<int N>          class A<double, N> { public : enum e { z = 1 }; };
      template<class T>        class A<T, 2>      { public : enum e { z = 2 }; };
      ],[return (A<int,3>::z == 0) && (A<double,3>::z == 1) && (A<float,2>::z == 2);],
       ac_cv_cxx_partial_specialization=yes, ac_cv_cxx_partial_specialization=no)
       AC_LANG_RESTORE
      ])
      if test "$ac_cv_cxx_partial_specialization" = yes; then
        AC_DEFINE(HAVE_PARTIAL_SPECIALIZATION,,
                  [define if the compiler supports partial specialization])
      fi
      ])