Candidate_v1.7.0
stable
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| [084729c] | 1 | dnl @synopsis AC_CXX_HAVE_VALARRAY
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| 2 | dnl
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| 3 | dnl If the compiler has valarray<T>, define HAVE_VALARRAY.
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| 4 | dnl
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| 5 | dnl @category Cxx
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| 6 | dnl @author Todd Veldhuizen
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| 7 | dnl @author Luc Maisonobe <luc@spaceroots.org>
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| 8 | dnl @version 2004-02-04
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| 9 | dnl @license AllPermissive
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| 10 |
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| 11 | AC_DEFUN([AC_CXX_HAVE_VALARRAY],
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| 12 | [AC_CACHE_CHECK(whether the compiler has valarray<T>,
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| 13 | ac_cv_cxx_have_valarray,
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| 14 | [AC_REQUIRE([AC_CXX_NAMESPACES])
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| 15 | AC_LANG_SAVE
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| 16 | AC_LANG_CPLUSPLUS
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| 17 | AC_TRY_COMPILE([#include <valarray>
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| 18 | #ifdef HAVE_NAMESPACES
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| 19 | using namespace std;
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| 20 | #endif],[valarray<float> x(100); return 0;],
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| 21 | ac_cv_cxx_have_valarray=yes, ac_cv_cxx_have_valarray=no)
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| 22 | AC_LANG_RESTORE
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| 23 | ])
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| 24 | if test "$ac_cv_cxx_have_valarray" = yes; then
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| 25 | AC_DEFINE(HAVE_VALARRAY,,[define if the compiler has valarray<T>])
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| 26 | fi
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| 27 | ])
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