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AC_CXX_HAVE_VALARRAY
If the compiler has valarray<T>, define HAVE_VALARRAY.
Todd Veldhuizen, Luc Maisonobe <luc@spaceroots.org>
2004-02-04
AC_DEFUN([AC_CXX_HAVE_VALARRAY], [AC_CACHE_CHECK(whether the compiler has valarray<T>, ac_cv_cxx_have_valarray, [AC_REQUIRE([AC_CXX_NAMESPACES]) AC_LANG_SAVE AC_LANG_CPLUSPLUS AC_TRY_COMPILE([#include <valarray> #ifdef HAVE_NAMESPACES using namespace std; #endif],[valarray<float> x(100); return 0;], ac_cv_cxx_have_valarray=yes, ac_cv_cxx_have_valarray=no) AC_LANG_RESTORE ]) if test "$ac_cv_cxx_have_valarray" = yes; then AC_DEFINE(HAVE_VALARRAY,,[define if the compiler has valarray<T>]) fi ])
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