IBM AS/400 manual Example of Setting a Watch Condition, BlankDisplay Module Source

Example of Setting a Watch Condition

Example of Setting a Watch Condition

In this example, you watchSALARYa variablein programMYLIB/PAYROLL. To set the watch condition, type:

WATCH SALARY

on a debug line, accepting the default value for the watch-length.

If the value of theSALARYvariablechanges subsequently, the application stops a

theDisplay Module Sourcedisplay is shown, as illustrated in Figure 91.

	‡					Display Module Source			—
		Program:		PAYROL		Library:	MYLIB	Module:	PAYROLL
	52		C			eval	cnt = 1
	53		C			dow	(cnt < EMPMAX)
	54		C			eval	Pay_exmpt(cnt) = eflag(cnt)
	55		C			eval	cnt = cnt + 1
	56		C			enddo
	57		C
	58		C			eval	index = 1
	59		C			dow	index <= cnt
	60		C			if	Pay_exmpt(index) = 1
	61		C			eval	SALARY = 40 * Pay_wage(index)
	62		C			eval	numexmpt = numexmpt + 1
	63		C			else
	64		C			eval	SALARY = Pay_hours(index)*Pay_wage(index)
	65		C			endif
	66		C			eval	index = index + 1
	67		C			enddo			More...
		Debug . . .			_________________________________________________________________
	_______________________________________________________________________________
		F3=End program F6=Add/Clear breakpoint F10=Step						F11=Display variable
		F12=Resume				F17=Watch variable	F18=Work with watch		F24=More keys
	ˆ Watch number				1 at line 65, variable: SALARY				˜
Figure			91.		Example of Message Stating WATCH was Successfully Set

¹The line number of the statement where the change to the watch detected is highlighted. This is typically thefollowingfirstheexecutable

statement that changed the variable.

¹ A message indicates that the watch condition was satisfied.

Note: If	a text view	is not	available,Display Module aSourceblank	display
is	shown, with the	same	message as above	in the message ar

The following programs cannot be added to the ILE debug env

1. ILE programs without debug data

2. OPM programs with non-source debug data only

3. OPM programs without debug data

In the first two cases,		the	stopped	statement	number	is	passed.	I
the stopped	MI instruction is		passed.	The information		is	displayed	a
a blankDisplay Module Source		display as shown below. Instead					of the	line
number, the	statement or	the	instruction	number is	given.

Chapter 11. Debugging Programs193