compiler upgrade - a silly question

agrj · Joined: 26 Sep 2003 Posts: 48

Hi All,

if I upgrade my compiler, the same code should generate the same check sum for both versions?

thanks

Aryldo

Mark · Joined: 07 Sep 2003 Posts: 2838 Location: Atlanta, GA

Not always. The compiler might change how it generates code (big fixes, optimizations, etc..).

agrj · Joined: 26 Sep 2003 Posts: 48

So, how can I be sure that the code generated by the new version is OK? I have to test it all again?

thanks

Aryldo

Mark · Joined: 07 Sep 2003 Posts: 2838 Location: Atlanta, GA

Exactly! Why are you upgrading? If the code you have is stable, then store that compiler version with the source. You can always rebuild with that compiler version and get the same results.

agrj · Joined: 26 Sep 2003 Posts: 48

That´s exactly what I´m doing. I was just wonder when I could belive that the newer version would be good to be used!!

I´m using the 3.204 version, and everything looks fine, but how knows after all!!

thanks

Aryldo

Will Reeve · Joined: 30 Oct 2003 Posts: 209 Location: Norfolk, England

I allways make sure I note the compiler version in the source code and do stick with a version when the product is released into the real world.

However I allways feel I should be using the latest version, must be human nature, or just me!

Will

SherpaDoug · Joined: 07 Sep 2003 Posts: 1640 Location: Cape Cod Mass USA

"Better the devil you know than the devil you don't."
I am still using version 3.104 because it does what I need. When I need something this version doesn't have I will upgrade. But I will archive 3.104 with the source code of my current projects.
The PIC 10F chips are likely to cause the next upgrade for me.
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The search for better is endless. Instead simply find very good and get the job done.

Humberto · Posted: Fri Dec 10, 2004 8:20 am

SherpaDoug · Joined: 07 Sep 2003 Posts: 1640 Location: Cape Cod Mass USA

Nope. It is really 3.104. I ordered it to replace my 2.7xx shortly after 3.xxx came out and that is what shipped. I then upgraded but lost the upgrade to a disk failure and didn't do any C work for few months. By the time I needed C again my upgrade period had ended so I am using 3.104 off the CD ROM. My programs are pretty simple and it does what I need. I haven't seen any fatal bugs yet.
_________________
The search for better is endless. Instead simply find very good and get the job done.

PCM programmer · Joined: 06 Sep 2003 Posts: 21708