Atmel AS7 ARM C Preprocessor directives missing #error?

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tarribred
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Posted by tarribred: Wed. Jan 17, 2018 - 05:53 PM
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Hi all,

 

Does AS7 using ARM support the #error and #message preprocessor directives?  I was trying to add in #error to abort compiling if it detects a certain condition.  It looks like the #warning works but not #error.  Is there something similar?

 

Thanks.

 

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Atmel SMART ARM-based MCUs and MPUs, Atmel Cortex-M MCUs, solved
Last Edited: Thu. Jan 18, 2018 - 01:53 PM
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tarribred
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Posted by tarribred: Wed. Jan 17, 2018 - 06:03 PM
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Nevermind; I guess it does. 

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awneil
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Posted by awneil: Wed. Jan 17, 2018 - 06:55 PM
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tarribred wrote:
AS7 using ARM

That would be GCC.

 

Yes, GCC certainly does support #error.

 

Note that #error is specified by the language standard; others are extensions

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tarribred
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Posted by tarribred: Wed. Jan 17, 2018 - 07:49 PM
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Thanks.  My problem was actually that I was testing the value of an enumeration that is implicitely assigned a value so the preprocessor didn't do the test the way I expected. After scratching my head and then posting the question I realized what was going on.

 

 

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awneil
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Posted by awneil: Wed. Jan 17, 2018 - 11:37 PM
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So you can now mark the solution - instructions here: https://www.avrfreaks.net/comment...

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillator: https://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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