Macro: ac_cxx_have_sstream

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# ac_cxx_have_sstream

## Synopsis

`AC_CXX_HAVE_SSTREAM`

## Version

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

## Author

Ben Stanley

## Description

If the C++ library has a working stringstream, define HAVE_SSTREAM.

## M4 Source Code

    AC_DEFUN([AC_CXX_HAVE_SSTREAM],
    [AC_CACHE_CHECK(whether the compiler has stringstream,
    ac_cv_cxx_have_sstream,
    [AC_REQUIRE([AC_CXX_NAMESPACES])
     AC_LANG_SAVE
     AC_LANG_CPLUSPLUS
     AC_TRY_COMPILE([#include <sstream>
    #ifdef HAVE_NAMESPACES
    using namespace std;
    #endif],[stringstream message; message << "Hello"; return 0;],
     ac_cv_cxx_have_sstream=yes, ac_cv_cxx_have_sstream=no)
     AC_LANG_RESTORE
    ])
    if test "$ac_cv_cxx_have_sstream" = yes; then
      AC_DEFINE(HAVE_SSTREAM,,[define if the compiler has stringstream])
    fi
    ])