• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 53 subscribers
  • Views 2090 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

New error using v5.1 (upgraded from v4.2)

Robert Lane
Expert 1225 points

I recently upgraded from v4.2 to v5.1 and have been trying to build my projects on the new version.  I noticed that I get a new error that I did not get on the previous version.  Whenever I have a case where I set a variable equal to itself, ie target_position = target_position, I now get an error stating:

"Assignment to itself 'target_position = target_position'

Is there any compiler/linker option I can set to mitigate this?  This has never been a problem with my code on the previous version and I don't really want to have to rewrite all my projects to account for this.

 

Thanks!

Dustin

  • 0
    TI__Guru**** 169754 points

    Dustin,

    This is not a compiler error, but instead an C-syntax error checker built into Eclipse. The syntax checker can be configured by right-clicking on the project --> Build Options --> click on Show Advanced Settings --> C/C++ General --> Code Analysis. It can also be completely disabled by going to the submenu Launching and then unchecking the box Run as you type (selected checkers). 

    However, I have a question: why are you assigning variables to themselves? Are you trying to establish points in your code to place breakpoints?

    If so, you could also use the asm("  NOP");

    That last option has one advantage: the optimizer (if used) leaves it alone. 

    Hope this helps,

    Rafael

  • 0 in reply to desouza
    Expert 1225 points

    Rafael,

    Thanks! That worked out well.  As to your question, there are some places in my code where I write values to flash.  To my understanding, each time I write to a flash block, I have to essentially re-write the entire block plus whatever addition I want to make.  Under some circumstances I want to update a particular variable when writing to flash, but under other circumstances, I want to keep it the same.  For the latter, there is some legacy code that simply sets a variable equal to itself to fulfill this task.  This method seems to work fine and as it does, I didn't want to go back and create "copied" variables for all these occasions in past versions of the code unless I really needed to.

    Thanks again,

    Dustin