X07CAF (PDF version)
X07 Chapter Contents
X07 Chapter Introduction
NAG Library Manual

NAG Library Routine Document

X07CAF

▸▿ Contents

    1  Purpose
    2  Specification
    3  Description
    4  References
    5  Parameters
    6  Error Indicators and Warnings
    7  Accuracy
    8  Parallelism and Performance
    9  Further Comments
    10  Example

1  Purpose

X07CAF gets the current IEEE exception halting mode.

2  Specification

SUBROUTINE X07CAF ( EXCEPTIONMODE)
INTEGER  EXCEPTIONMODE(3)

3  Description

X07CAF gets the current IEEE exception halting mode for the three common exceptions: overflow, divide-by-zero and invalid operation.

4  References

IEEE (2008) Standard for Floating-Point Arithmetic IEEE Standard 754-2008 IEEE, New York.

5  Parameters

1:     EXCEPTIONMODE3 – INTEGER arrayOutput
On exit: each of the three elements of EXCEPTIONMODE is set to 1 if the corresponding condition will raise an exception, and is set to 0 otherwise. EXCEPTIONMODE1 concerns floating-point overflow, EXCEPTIONMODE2 concerns floating-point division by zero, and EXCEPTIONMODE3 concerns floating-point invalid operation.

6  Error Indicators and Warnings

None.

7  Accuracy

Not applicable.

8  Parallelism and Performance

Not applicable.

9  Further Comments

None.

10  Example

See Section 10 in X07AAF.
X07CAF (PDF version)
X07 Chapter Contents
X07 Chapter Introduction
NAG Library Manual
© The Numerical Algorithms Group Ltd, Oxford, UK. 2015