Run-Time Function: Returns a pointer to C run-time exception information pointers appropriate for use in signal handlers established with SIGNALQQ or direct calls to the C rtl signal( ) routine.
USE IFCORE
result = GETEXCEPTIONPTRSQQ( )
The result type is INTEGER(4) on IA-32 architecture; INTEGER(8) on Intel® 64 architecture. The return value is the address of a data structure whose members are pointers to exception information captured by the C runtime at the time of an exception. This result value can then be used as the eptr argument to routine TRACEBACKQQ to generate a stack trace from a user-defined handler or to inspect the exception context record directly.
Calling GETEXCEPTIONPTRSQQ is only valid within a user-defined handler that was established with SIGNALQQ or a direct call to the C rtl signal( ) function.
For a full description of exceptions and error handling, see Building Applications: The Floating-Point Environment Overview.
CONSOLE STANDARD GRAPHICS QUICKWIN GRAPHICS DLL LIB
PROGRAM SIGTEST
USE IFCORE
...
R3 = 0.0E0
STS = SIGNALQQ(MY_HANDLER)
! Cause a divide by zero exception
R1 = 3.0E0/R3
...
END
INTEGER(4) FUNCTION MY_HANDLER(SIGNUM,EXCNUM)
USE IFCORE
...
EPTRS = GETEXCEPTIONPTRSQQ()
...
CALL TRACEBACKQQ("Application SIGFPE error!",USER_EXIT_CODE=-1,EPTR=EPTRS)
...
MY_HANDLER = 1
END
Building Applications: Using SIGNALQQ