SRC/disnan.f(3)

NAME
SRC/disnan.f

SYNOPSIS

  Functions/Subroutines
logical function disnan (din)
DISNAN tests input for NaN.

Function/Subroutine Documentation

  logical function disnan (double precision, intent(in) din)

DISNAN tests input for NaN.

Purpose:

    !>
    !> DISNAN returns .TRUE. if its argument is NaN, and .FALSE.
    !> otherwise.  To be replaced by the Fortran 2003 intrinsic in the
    !> future.
    !>

Parameters
    DIN

    !>          DIN is DOUBLE PRECISION
    !>          Input to test for NaN.
    !>

Author
    Univ. of Tennessee

    Univ. of California Berkeley

    Univ. of Colorado Denver

    NAG Ltd.

Definition at line 58 of file disnan.f.

Author

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