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disnan.f File Reference

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Functions/Subroutines

logical function disnan (DIN)
 DISNAN tests input for NaN. More...
 

Function/Subroutine Documentation

logical function disnan ( double precision  DIN)

DISNAN tests input for NaN.

Download DISNAN + dependencies [TGZ] [ZIP] [TXT]

Purpose:
 DISNAN returns .TRUE. if its argument is NaN, and .FALSE.
 otherwise.  To be replaced by the Fortran 2003 intrinsic in the
 future.
Parameters
[in]DIN
          DIN is DOUBLE PRECISION
          Input to test for NaN.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date
September 2012

Definition at line 60 of file disnan.f.