How to add customized compiling message under Arduino IDE

[SteveChang]

Hi All,
I want to add some customized output information in Arduino IDE when compiling the code written by me.
I tried #pragma message("hello"). It dispalyed nothing.
Can anybody know it?

Thanks,

Steve

[Coding Badly]

Code: [Select]


#error Bad news, dude.

#warning Something fishy.


[Coding Badly]

Another possibility (requires the condition to reduce to a compile-time constant)...

Code: [Select]

static void OutputsErrorIfCalled( void ) __attribute__ (( error("Unexpected condition encountered.") ));

void loop( void )
{
 if ( true )
 {
   OutputsErrorIfCalled();
 }
}


[SteveChang]

It works!
Thanks for your help.

Steve

[JediJeremy]

Please don't.

I'm current looking for ways to disable the entire #pragma message system because devs are polluting it with "Hey, I'm so great!" messages that look like compilers errors to newbs.

Yes, we know we're using your library. We had to download and install it. Reminding us makes us look for a quieter one.

[Coding Badly]

Yes, we know we're using your library.

Library?  Which library?

[OldSteve]

Please don't.

I'm current looking for ways to disable the entire #pragma message system because devs are polluting it with "Hey, I'm so great!" messages that look like compilers errors to newbs.

Yes, we know we're using your library. We had to download and install it. Reminding us makes us look for a quieter one.

Compiler messages are very useful.
For instance, you can write your code to work on a particular board or boards, then have an error generated (and compilation aborted) if you accidentally try to compile it for a different board.

e.g.

Code: [Select]

#ifndef __AVR_ATmega2560__  // Mega2560
#error Wrong chip defined - cannot continue! Please use an ATMega2560
#endif

I don't see any reference to the possibility that this might be code for public use in a distributed library, so no need to panic. It's probably for his own use.