ieeeck.f man page

ieeeck.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.

Referenced By

ieeeck(3) is an alias of ieeeck.f(3).

Sat Nov 16 2013 Version 3.4.2 LAPACK