NAG FL Interface
x07caf (get_​exception_​mode)

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1 Purpose

x07caf gets the current IEEE exception halting mode.

2 Specification

Fortran Interface
Subroutine x07caf ( exceptionmode)
Integer, Intent (Out) :: exceptionmode(3)
C Header Interface
#include <nag.h>
void  x07caf_ (Integer exceptionmode[])
The routine may be called by the names x07caf or nagf_ieee_get_exception_mode.

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 Arguments

1: exceptionmode(3) Integer array Output
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(1) concerns floating-point overflow, exceptionmode(2) concerns floating-point division by zero, and exceptionmode(3) concerns floating-point invalid operation.

6 Error Indicators and Warnings


7 Accuracy

Not applicable.

8 Parallelism and Performance

x07caf is not threaded in any implementation.

9 Further Comments


10 Example

See x07aaf.