IBM Version 4 manual Second, Exception handling is by having All Exceptions Signa

if (error_code.ec_fields.Bytes_Available != ð)

{

printf("ATTEMPT TO REGISTER EXIT POINT FAILED WITH EXCEPT￿ION: %.7s", error_code.ec_fields.Exception_Id);

exit(1);

}

Message Data—Example:If your program needs to handle different excep different ways, you may need to make use of both the message data message ID. The message data is returned in the same format as when display the message description on an AS/400. For example, if message CPF3C1E is received, some of the message data is printed. You can se message data that is associated with the message by using the Displ Description (DSPMSGD) command. The message data for message CPF3C1E is defined as:

BIN(4)	Parameter number
CHAR(256)	ILE entry point name

To receive all of the message data for this exception, the exceptio error code structure would need to be at least 260 bytes in size. example uses only the number of bytes shown for the parameter number exception in the message data; therefore, the exception data field 4 bytes.

int parm_number; char \temp_ptr;

if (error_code.ec_fields.Bytes_Available != ð)

{

if (memcmp(error_code.ec_fields.Exception_Id,"CPF3C1E",7)==ð)

{

printf("\nFAILED WITH CPF3C1E:"); temp_ptr=&(error_code.exception_data); parm_number=\((int \)temp_ptr);

printf("\n Parameter number omitted: %d",parm_number);

}

else

{

printf("ATTEMPT TO REGISTER EXIT POINT FAILED WITH EXCEPT￿ION: %.7s", error_code.ec_fields.Exception_Id);

exit(1);

}

}

Error	Handling		Signaled	by	API
The	second		means	of exception handling is by having				all	exceptions	signa
the	API	to	the	calling program. To have all exceptions					signaled by the
bytes provided				field of the error		code	structure	to zero. Refer t
of	your	specific			programming language	for	information	on	exception	handlin

4-6System API Programming V4R1