Error Checking and Reporting

The safety mechanism can perform error checking and generate run-time error information at multiple levels of detail. You can turn safety checking on at any level during all or part of a program. One level checks for errors in the usage and arguments of the Sun S3L calls in your program; a more detailed level also checks for errors generated by internal Sun S3L routines. Examples of errors found and reported by the safety mechanism include the following:

• A supplied or returned data element that should be numerical is not. For example, it is identified as a Not a Number (NaN), or as infinity. NaNs are defined in the IEEE Standard for Binary Floating-Point Arithmetic.

• The code generates a division by 0 (for example, because of bad data, a user error, or an internal software problem).

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  Note -

  For performance reasons, Sun S3L conducts most of its argument checking and error handling independently on each process. Consequently, when the safety mechanism is enabled and an error is detected, different processes may return different error values.

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