Macro: ac_cxx_have_vector_at

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Synopsis

  `AC_CXX_HAVE_VECTOR_AT`

Version

  1.1 (2001/07/26) C++_Support @ ac-archive-0.5.39

Author

  Jan Langer <jan@langernetz.de>

Description

  If the implementation of the C++ library provides the method std::vector::at(std::size_t), define HAVE_VECTOR_AT.

M4 Source Code

      AC_DEFUN([AC_CXX_HAVE_VECTOR_AT],
      [AC_CACHE_CHECK(whether the compiler has std::vector::at (std::size_t),
      ac_cv_cxx_have_vector_at,
      [AC_REQUIRE([AC_CXX_NAMESPACES])
       AC_LANG_SAVE
       AC_LANG_CPLUSPLUS
       AC_TRY_COMPILE([#include <vector>
      #ifdef HAVE_NAMESPACES
      using namespace std;
      #endif],[vector v (1); message.at (0); return 0;],
       ac_cv_cxx_have_vector_at=yes, ac_cv_cxx_have_vector_at=no)
       AC_LANG_RESTORE
      ])
      if test "$ac_cv_cxx_have_vector_at" = yes; then
       AC_DEFINE(HAVE_VECTOR_AT,,[define if the compiler has the method
      std::vector::at (std::size_t)])
      fi
      ])dnl