slaisnan.f - Online Linux Manual PageSection : 3
Updated : Tue Nov 14 2017
Source : Version 3.8.0
Note : LAPACK

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NAMEslaisnan.f

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SYNOPSIS

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Functions/Subroutineslogical function slaisnan (SIN1, SIN2)
SLAISNAN tests input for NaN by comparing two arguments for inequality​.

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Function/Subroutine Documentation

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logical function slaisnan (real, intent(in) SIN1, real, intent(in) SIN2)SLAISNAN tests input for NaN by comparing two arguments for inequality​. Purpose: This routine is not for general use. It exists solely to avoid over-optimization in SISNAN. SLAISNAN 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.Parameters: SIN1 SIN1 is REAL
SIN2 SIN2 is REAL Two numbers to compare for inequality.Author: Univ​. of Tennessee Univ​. of California Berkeley Univ​. of Colorado Denver NAG Ltd​. Date: June 2017 Definition at line 76 of file slaisnan​.f​.

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AuthorGenerated automatically by Doxygen for LAPACK from the source code​. 0

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Johanes Gumabo

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