IBM AS/400 User Manual
Example of Setting a Watch Condition
Example of Setting a Watch Condition
In this example, you watch a variable
SALARY
in program
MYLIB/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 the variable
SALARY
changes subsequently, the application stops and
the Display Module Source display 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
F3=End program
F6=Add/Clear breakpoint
F10=Step
F11=Display variable
F12=Resume
F17=Watch variable
F18=Work with watch
F24=More keys
Watch number
1 at line 65, variable: SALARY
Figure 91. Example of Message Stating WATCH was Successfully Set
¹
The line number of the statement where the change to the watch variable was
detected is highlighted. This is typically the first executable line
detected is highlighted. This is typically the first executable line
following the
statement that changed the variable.
¹
A message indicates that the watch condition was satisfied.
Note: If a text view is not available, a blank Display Module Source display
is shown, with the same message as above in the message area.
The following programs cannot be added to the ILE debug environment:
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. In the third case,
the stopped MI instruction is passed. The information is displayed at the bottom of
a blank Display Module Source display as shown below. Instead of the line
number, the statement or the instruction number is given.
the stopped MI instruction is passed. The information is displayed at the bottom of
a blank Display Module Source display as shown below. Instead of the line
number, the statement or the instruction number is given.
Chapter 11. Debugging Programs
193