Jump to content
Sign in to follow this  
JSThePatriot

Should += work inside a function?

Recommended Posts

JSThePatriot

Was trying to perform a simple operation inside the INIWrite function. I at least thought it was simple. I was trying to use the operator += inside the INIWrite function and it failed.

Non-working...

INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration += 1)oÝ÷ Ùj+)àjëh×6  $i_Iteration += 1
    INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration)

Is this expected behavior? I haven't the time to test in other functions, but I thought it would/should work.

Thanks,

Jarvis


AutoIt Links

File-String Hash Plugin Updated! 04-02-2008 Plugins have been discontinued. I just found out.

ComputerGetInfo UDF's Updated! 11-23-2006

External Links

Vortex Revolutions Engineer / Inventor (Web, Desktop, and Mobile Applications, Hardware Gizmos, Consulting, and more)

Share this post


Link to post
Share on other sites
GEOSoft

Was trying to perform a simple operation inside the INIWrite function. I at least thought it was simple. I was trying to use the operator += inside the INIWrite function and it failed.

Non-working...

INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration += 1)oÝ÷ Ùj+)àjëh×6  $i_Iteration += 1
    INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration)

Is this expected behavior? I haven't the time to test in other functions, but I thought it would/should work.

Thanks,

Jarvis

Don't see why it would/should work. IniWrite() is really looking for a string there although it will accept a number the number will be handled as a string so you can't perform a math operation inside the function call.

George

Question about decompiling code? Read the decompiling FAQ and don't bother posting the question in the forums.

Be sure to read and follow the forum rules. -AKA the AutoIt Reading and Comprehension Skills test.***

The PCRE (Regular Expression) ToolKit for AutoIT - (Updated Oct 20, 2011 ver:3.0.1.13) - Please update your current version before filing any bug reports. The installer now includes both 32 and 64 bit versions. No change in version number.

Visit my Blog .. currently not active but it will soon be resplendent with news and views. Also please remove any links you may have to my website. it is soon to be closed and replaced with something else.

"Old age and treachery will always overcome youth and skill!"

Share this post


Link to post
Share on other sites
Josbe

IMO, this behavior it's expected, because works like an assignation not like an unary operator. The same reason why this don't works:

INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration = 1)

edit1: typo.

Edited by Josbe

Share this post


Link to post
Share on other sites
Jos

in this case I would expect it to look like this: INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration + 1),

because this is not a common way of doing it: INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration = $i_Iteration + 1)

:)

Edited by Jos

Visit the SciTE4AutoIt3 Download page for the latest versions  - Beta files                                How to post scriptsource        Forum Rules
 
Live for the present,
Dream of the future,
Learn from the past.
  :)

Share this post


Link to post
Share on other sites
PsaltyDS

Was trying to perform a simple operation inside the INIWrite function. I at least thought it was simple. I was trying to use the operator += inside the INIWrite function and it failed.

Is this expected behavior? I haven't the time to test in other functions, but I thought it would/should work.

Thanks,

Jarvis

I think there is a difference between the two:

Assignment, where a value is assigned to a variable but there is no external return value.

Evaluation, where a value is returned from an operation, but not assigned to a variable.

Inside a function you can use the returned value from evaluation as a parameter, but attempted assignment triggers syntax errors.

Don't see why it would/should work. IniWrite() is really looking for a string there although it will accept a number the number will be handled as a string so you can't perform a math operation inside the function call.

Native AutoIt functions expecting strings effectively perform String() on whatever they are given, which can be the evaluation of a math expression (including variable values), as long as there is no assignment in it. This would work:
IniWrite($sIniFile, "Math_Section", "Cube_Root_Of_" & $i & "_Squared", ($i ^ 2) ^ -3)

:)

Edited by PsaltyDS

Valuater's AutoIt 1-2-3, Class... Is now in Session!For those who want somebody to write the script for them: RentACoder"Any technology distinguishable from magic is insufficiently advanced." -- Geek's corollary to Clarke's law

Share this post


Link to post
Share on other sites
GEOSoft

By the way whats wrong with just using the + operation?

INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration +1)

NM, Just your everyday bad idea.

Edited by GEOSoft

George

Question about decompiling code? Read the decompiling FAQ and don't bother posting the question in the forums.

Be sure to read and follow the forum rules. -AKA the AutoIt Reading and Comprehension Skills test.***

The PCRE (Regular Expression) ToolKit for AutoIT - (Updated Oct 20, 2011 ver:3.0.1.13) - Please update your current version before filing any bug reports. The installer now includes both 32 and 64 bit versions. No change in version number.

Visit my Blog .. currently not active but it will soon be resplendent with news and views. Also please remove any links you may have to my website. it is soon to be closed and replaced with something else.

"Old age and treachery will always overcome youth and skill!"

Share this post


Link to post
Share on other sites
JSThePatriot

in this case I would expect it to look like this: INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration + 1),

because this is not a common way of doing it: INIWrite("RestartPC.ini", "RestartPCSettings", "iteration", $i_Iteration = $i_Iteration + 1)

:)

Jos

This would seem to be the solution I was looking for as I don't really care if $i_Iteration has a new value or not. I just want the new value in the file. However, I added () to the equation, and I would have thought that to fix the assignment operation as I have used $i += somenumber inside other functions. I don't have any examples off the top of my head, and I could be mistaken, which is why I brought it here to the community. :o

I have it working, but I might just change it to your suggestion Jos as it makes more sense to me as to what I really want done.

Thanks for all the replies!

Jarvis


AutoIt Links

File-String Hash Plugin Updated! 04-02-2008 Plugins have been discontinued. I just found out.

ComputerGetInfo UDF's Updated! 11-23-2006

External Links

Vortex Revolutions Engineer / Inventor (Web, Desktop, and Mobile Applications, Hardware Gizmos, Consulting, and more)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×