#include "ESMF_LapackBlas.inc" !> \brief \b DISNAN ! ! =========== DOCUMENTATION =========== ! ! Online html documentation available at ! http://www.netlib.org/lapack/explore-html/ ! !> \htmlonly !> Download DISNAN + dependencies !> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/disnan.f"> !> [TGZ]</a> !> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/disnan.f"> !> [ZIP]</a> !> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/disnan.f"> !> [TXT]</a> !> \endhtmlonly ! ! Definition: ! =========== ! ! LOGICAL FUNCTION DISNAN( DIN ) ! ! .. Scalar Arguments .. ! DOUBLE PRECISION DIN ! .. ! ! !> \par Purpose: ! ============= !> !> \verbatim !> !> DISNAN returns .TRUE. if its argument is NaN, and .FALSE. !> otherwise. To be replaced by the Fortran 2003 intrinsic in the !> future. !> \endverbatim ! ! Arguments: ! ========== ! !> \param[in] DIN !> \verbatim !> DIN is DOUBLE PRECISION !> Input to test for NaN. !> \endverbatim ! ! Authors: ! ======== ! !> \author Univ. of Tennessee !> \author Univ. of California Berkeley !> \author Univ. of Colorado Denver !> \author NAG Ltd. ! !> \date November 2011 ! !> \ingroup auxOTHERauxiliary ! ! ===================================================================== LOGICAL FUNCTION DISNAN( DIN ) ! ! -- LAPACK auxiliary routine (version 3.4.0) -- ! -- LAPACK is a software package provided by Univ. of Tennessee, -- ! -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- ! November 2011 ! ! .. Scalar Arguments .. DOUBLE PRECISION DIN ! .. ! ! ===================================================================== ! ! .. External Functions .. LOGICAL DLAISNAN EXTERNAL DLAISNAN ! .. ! .. Executable Statements .. DISNAN = DLAISNAN(DIN,DIN) RETURN END