NAG C Library Function Document

nag_get_ieee_exception_mode (x07cac)

1
Purpose

nag_get_ieee_exception_mode (x07cac) gets the current IEEE exception halting mode.

2
Specification

#include <nag.h>
#include <nagx07.h>
void  nag_get_ieee_exception_mode (Integer exceptionmode[])

3
Description

nag_get_ieee_exception_mode (x07cac) 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
Arguments

1:     exceptionmode[3] IntegerOutput
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. exceptionmode[0] concerns floating-point overflow, exceptionmode[1] concerns floating-point division by zero, and exceptionmode[2] concerns floating-point invalid operation.

6
Error Indicators and Warnings

None.

7
Accuracy

Not applicable.

8
Parallelism and Performance

nag_get_ieee_exception_mode (x07cac) is not threaded in any implementation.

9
Further Comments

None.

10
Example

See Section 10 in nag_is_finite (x07aac).