ieeeck.f(3) LAPACK ieeeck.f(3)NAMEieeeck.f-
SYNOPSIS
Functions/Subroutines
INTEGER function ieeeck (ISPEC, ZERO, ONE)
IEEECK
Function/Subroutine Documentation
INTEGER function ieeeck (integerISPEC, realZERO, realONE)
IEEECK
Purpose:
IEEECK is called from the ILAENV to verify that Infinity and
possibly NaN arithmetic is safe (i.e. will not trap).
Parameters:
ISPEC
ISPEC is INTEGER
Specifies whether to test just for inifinity arithmetic
or whether to test for infinity and NaN arithmetic.
= 0: Verify infinity arithmetic only.
= 1: Verify infinity and NaN arithmetic.
ZERO
ZERO is REAL
Must contain the value 0.0
This is passed to prevent the compiler from optimizing
away this code.
ONE
ONE is REAL
Must contain the value 1.0
This is passed to prevent the compiler from optimizing
away this code.
RETURN VALUE: INTEGER
= 0: Arithmetic failed to produce the correct answers
= 1: Arithmetic produced the correct answers
Author:
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Date:
November 2011
Definition at line 83 of file ieeeck.f.
Author
Generated automatically by Doxygen for LAPACK from the source code.
Version 3.4.2 Sat Nov 16 2013 ieeeck.f(3)
