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Diff for /rpl/lapack/lapack/dlaisnan.f between versions 1.5 and 1.17

version 1.5, 2010/08/07 13:18:06 version 1.17, 2017/06/17 11:06:23
Line 1 Line 1
       LOGICAL FUNCTION DLAISNAN( DIN1, DIN2 )  *> \brief \b DLAISNAN tests input for NaN by comparing two arguments for inequality.
 *  *
 *  -- LAPACK auxiliary routine (version 3.2.2) --  *  =========== DOCUMENTATION ===========
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --  
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--  
 *     June 2010  
 *  *
 *     .. Scalar Arguments ..  * Online html documentation available at
       DOUBLE PRECISION   DIN1, DIN2  *            http://www.netlib.org/lapack/explore-html/
 *     ..  
 *  *
 *  Purpose  *> \htmlonly
 *  =======  *> Download DLAISNAN + dependencies
   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/dlaisnan.f">
   *> [TGZ]</a>
   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/dlaisnan.f">
   *> [ZIP]</a>
   *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/dlaisnan.f">
   *> [TXT]</a>
   *> \endhtmlonly
   *
   *  Definition:
   *  ===========
   *
   *       LOGICAL FUNCTION DLAISNAN( DIN1, DIN2 )
   *
   *       .. Scalar Arguments ..
   *       DOUBLE PRECISION   DIN1, DIN2
   *       ..
   *
   *
   *> \par Purpose:
   *  =============
   *>
   *> \verbatim
   *>
   *> This routine is not for general use.  It exists solely to avoid
   *> over-optimization in DISNAN.
   *>
   *> DLAISNAN checks for NaNs by comparing its two arguments for
   *> inequality.  NaN is the only floating-point value where NaN != NaN
   *> returns .TRUE.  To check for NaNs, pass the same variable as both
   *> arguments.
   *>
   *> A compiler must assume that the two arguments are
   *> not the same variable, and the test will not be optimized away.
   *> Interprocedural or whole-program optimization may delete this
   *> test.  The ISNAN functions will be replaced by the correct
   *> Fortran 03 intrinsic once the intrinsic is widely available.
   *> \endverbatim
   *
   *  Arguments:
   *  ==========
   *
   *> \param[in] DIN1
   *> \verbatim
   *>          DIN1 is DOUBLE PRECISION
   *> \endverbatim
   *>
   *> \param[in] DIN2
   *> \verbatim
   *>          DIN2 is DOUBLE PRECISION
   *>          Two numbers to compare for inequality.
   *> \endverbatim
   *
   *  Authors:
   *  ========
   *
   *> \author Univ. of Tennessee
   *> \author Univ. of California Berkeley
   *> \author Univ. of Colorado Denver
   *> \author NAG Ltd.
 *  *
 *  This routine is not for general use.  It exists solely to avoid  *> \date December 2016
 *  over-optimization in DISNAN.  
 *  *
 *  DLAISNAN checks for NaNs by comparing its two arguments for  *> \ingroup OTHERauxiliary
 *  inequality.  NaN is the only floating-point value where NaN != NaN  
 *  returns .TRUE.  To check for NaNs, pass the same variable as both  
 *  arguments.  
 *  
 *  A compiler must assume that the two arguments are  
 *  not the same variable, and the test will not be optimized away.  
 *  Interprocedural or whole-program optimization may delete this  
 *  test.  The ISNAN functions will be replaced by the correct  
 *  Fortran 03 intrinsic once the intrinsic is widely available.  
 *  *
 *  Arguments  *  =====================================================================
 *  =========        LOGICAL FUNCTION DLAISNAN( DIN1, DIN2 )
 *  *
 *  DIN1    (input) DOUBLE PRECISION  *  -- LAPACK auxiliary routine (version 3.7.0) --
   *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
   *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
   *     December 2016
 *  *
 *  DIN2    (input) DOUBLE PRECISION  *     .. Scalar Arguments ..
 *          Two numbers to compare for inequality.        DOUBLE PRECISION   DIN1, DIN2
   *     ..
 *  *
 *  =====================================================================  *  =====================================================================
 *  *
Removed from v.1.5  
changed lines
  Added in v.1.17

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