Return to disnan.f CVS log

Up to [local] / rpl / lapack / lapack

Annotation of rpl/lapack/lapack/disnan.f, revision 1.17

1.12      bertrand    1: *> \brief \b DISNAN tests input for NaN.
1.9       bertrand    2: *
                      3: *  =========== DOCUMENTATION ===========
                      4: *
1.16      bertrand    5: * Online html documentation available at
                      6: *            http://www.netlib.org/lapack/explore-html/
1.9       bertrand    7: *
                      8: *> \htmlonly
1.16      bertrand    9: *> Download DISNAN + dependencies
                     10: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/disnan.f">
                     11: *> [TGZ]</a>
                     12: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/disnan.f">
                     13: *> [ZIP]</a>
                     14: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/disnan.f">
1.9       bertrand   15: *> [TXT]</a>
1.16      bertrand   16: *> \endhtmlonly
1.9       bertrand   17: *
                     18: *  Definition:
                     19: *  ===========
                     20: *
                     21: *       LOGICAL FUNCTION DISNAN( DIN )
1.16      bertrand   22: *
1.9       bertrand   23: *       .. Scalar Arguments ..
                     24: *       DOUBLE PRECISION   DIN
                     25: *       ..
1.16      bertrand   26: *
1.9       bertrand   27: *
                     28: *> \par Purpose:
                     29: *  =============
                     30: *>
                     31: *> \verbatim
                     32: *>
                     33: *> DISNAN returns .TRUE. if its argument is NaN, and .FALSE.
                     34: *> otherwise.  To be replaced by the Fortran 2003 intrinsic in the
                     35: *> future.
                     36: *> \endverbatim
                     37: *
                     38: *  Arguments:
                     39: *  ==========
                     40: *
                     41: *> \param[in] DIN
                     42: *> \verbatim
                     43: *>          DIN is DOUBLE PRECISION
                     44: *>          Input to test for NaN.
                     45: *> \endverbatim
                     46: *
                     47: *  Authors:
                     48: *  ========
                     49: *
1.16      bertrand   50: *> \author Univ. of Tennessee
                     51: *> \author Univ. of California Berkeley
                     52: *> \author Univ. of Colorado Denver
                     53: *> \author NAG Ltd.
1.9       bertrand   54: *
1.16      bertrand   55: *> \date December 2016
1.9       bertrand   56: *
1.16      bertrand   57: *> \ingroup OTHERauxiliary
1.9       bertrand   58: *
                     59: *  =====================================================================
1.5       bertrand   60:       LOGICAL FUNCTION DISNAN( DIN )
1.1       bertrand   61: *
1.16      bertrand   62: *  -- LAPACK auxiliary routine (version 3.7.0) --
1.1       bertrand   63: *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
                     64: *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
1.16      bertrand   65: *     December 2016
1.1       bertrand   66: *
                     67: *     .. Scalar Arguments ..
1.5       bertrand   68:       DOUBLE PRECISION   DIN
1.1       bertrand   69: *     ..
                     70: *
                     71: *  =====================================================================
                     72: *
                     73: *  .. External Functions ..
                     74:       LOGICAL DLAISNAN
                     75:       EXTERNAL DLAISNAN
                     76: *  ..
                     77: *  .. Executable Statements ..
                     78:       DISNAN = DLAISNAN(DIN,DIN)
                     79:       RETURN
                     80:       END