SIGFPOFL

SIGFPOFL

Floating-Point Overflow

Default handling
Ignoring the signal
Information returned by siginfo
Notes on defining a handler

The SIGFPOFL signal is raised when the magnitude of the result of a floating-point computation exceeds the maximum supported by the hardware and default handling is in effect for SIGFPE . If you have specified a handler for SIGFPE (either SIG_IGN or a function you define), SIGFPOFL is not raised.

Default handling

If the SIGFPOFL signal is raised and default handling is in effect, the program abnormally terminates with an ABEND code of 0CC.

Ignoring the signal

If your program ignores SIGFPOFL , program execution continues, but the results of the failed expression are unpredictable.

Information returned by siginfo

If you call siginfo after a SIGFPOFL signal occurs, siginfo returns a pointer to a structure of type FPE_t . Refer to the description of SIGFPE for a discussion of this structure.

Notes on defining a handler

If you define a handler for SIGFPOFL , you can change the result of the computation by using the information returned by siginfo . Refer to the example in the description of the siginfo function for an illustration of this technique.

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