Return to disnan.f CVS log

Up to [local] / rpl / lapack / lapack

Annotation of rpl/lapack/lapack/disnan.f, revision 1.1

1.1     ! bertrand    1:       LOGICAL FUNCTION DISNAN(DIN)
        !             2: *
        !             3: *  -- LAPACK auxiliary routine (version 3.2) --
        !             4: *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
        !             5: *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
        !             6: *     November 2006
        !             7: *
        !             8: *     .. Scalar Arguments ..
        !             9:       DOUBLE PRECISION DIN
        !            10: *     ..
        !            11: *
        !            12: *  Purpose
        !            13: *  =======
        !            14: *
        !            15: *  DISNAN returns .TRUE. if its argument is NaN, and .FALSE.
        !            16: *  otherwise.  To be replaced by the Fortran 2003 intrinsic in the
        !            17: *  future.
        !            18: *
        !            19: *  Arguments
        !            20: *  =========
        !            21: *
        !            22: *  DIN      (input) DOUBLE PRECISION
        !            23: *          Input to test for NaN.
        !            24: *
        !            25: *  =====================================================================
        !            26: *
        !            27: *  .. External Functions ..
        !            28:       LOGICAL DLAISNAN
        !            29:       EXTERNAL DLAISNAN
        !            30: *  ..
        !            31: *  .. Executable Statements ..
        !            32:       DISNAN = DLAISNAN(DIN,DIN)
        !            33:       RETURN
        !            34:       END