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authorSiddhesh Wani2015-05-25 14:46:31 +0530
committerSiddhesh Wani2015-05-25 14:46:31 +0530
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+ LOGICAL FUNCTION DISNAN(DIN)
+*
+* -- LAPACK auxiliary routine (version 3.1) --
+* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
+* November 2006
+*
+* .. Scalar Arguments ..
+ DOUBLE PRECISION DIN
+* ..
+*
+* Purpose
+* =======
+*
+* DISNAN returns .TRUE. if its argument is NaN, and .FALSE.
+* otherwise. To be replaced by the Fortran 2003 intrinsic in the
+* future.
+*
+* Arguments
+* =========
+*
+* DIN (input) DOUBLE PRECISION
+* Input to test for NaN.
+*
+* =====================================================================
+*
+* .. External Functions ..
+ LOGICAL DLAISNAN
+ EXTERNAL DLAISNAN
+* ..
+* .. Executable Statements ..
+ DISNAN = DLAISNAN(DIN,DIN)
+ RETURN
+ END