ibm midrange - Boolean order of operation in RPGLE -

-

why below code result in true if type = 7 , seq = 224?

rpgle free form:

if (type = 6 or                      type = 7 or                      type = 9) ,                    not (seq = 224 or seq=249);

i had rewrite to:

if (type = 6 or                      type = 7 or                      type = 9) ,                    seq <> 224 ,      seq <> 249;

but why? guessing has not operator.

well, not has higher precedence and or or rpg iv reference manual operator precedence

  1. ()
  2. built-in functions, user-defined functions
  3. unary +, unary -, not
  4. **
  5. *, /
  6. binary +, binary -
  7. =, <>, >, >=, <, <=
  8. and
  9. or

however, expression show should evaluate false...

**free   dcl-s flag ind;  dcl-s seq int(5) inz(224);  dcl-s type int(5) inz(7);     flag = (type = 6 or            type = 7 or            type = 9) ,             not (seq = 224 or seq=249);     dsply ('flag=' + flag);    *inlr = *on;    return;

joblog shows:

dsply flag=0


Comments

Post a Comment

Popular posts from this blog

ZeroMQ on Windows, with Qt Creator -

-
i have installed zmq link given below on windows 7. http://zeromq.org/distro:microsoft-windows 1) have c++ project in qt-creator , i'm using zmq c++ binding (zhelpers.hpp etc). 2) have added .lib installed zmq folder qtcreator 3) while compiling, compiler looks _imp__zmq_verion, in .dll files present in .lib have __imp_zmq_version. 4) causing undefined reference zmq_version. anyone else faced problem , has solution ?
Read more

unity3d - Unity SceneManager.LoadScene quits application -

-
i have 2 different scenes 1 named 'main' , other 'game' both added scenes in load. when use scenemanager.loadscene("game"); works no problem when tried return main scene code if (input.getkeydown (keycode.escape)) { scenemanager.loadscene("main"); } strangely game quits. thanks. sorry interruption. somewhere on other script found code. if (input.getkeydown (keycode.escape)) { application.quit (); } that's bad, know...
Read more

python - Error while using APScheduler: 'NoneType' object has no attribute 'now' -

-
i have python app hosting on heroku. use apscheduler call function every day @ time. strange thing 1 time function runs after while have following error log: exception in thread apscheduler (most raised during interpreter shutdown): 2017-09-06t15:03:28.347848+00:00 app[web.1]: traceback (most recent call last): 2017-09-06t15:03:28.347858+00:00 app[web.1]: file "/app/.heroku/python/lib/python2.7/threading.py", line 810, in __bootstrap_inner 2017-09-06t15:03:28.347859+00:00 app[web.1]: file "/app/.heroku/python/lib/python2.7/threading.py", line 763, in run 2017-09-06t15:03:28.347861+00:00 app[web.1]: file "/app/.heroku/python/lib/python2.7/site-packages/apscheduler/schedulers/blocking.py", line 27, in _main_loop 2017-09-06t15:03:28.348167+00:00 app[web.1]: <type 'exceptions.attributeerror'>: 'nonetype' object has no attribute 'now' any guesses? the full code long here key parts: def startdayauto(): global ...
Read more