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Using the '#message' directive

andrey goverdovsky

I'm using uVision 5.14 and this is the error I receive when I try to use the '#message' directive:

error:  #11-D: unrecognized preprocessing directive
#message

Am I missing something?

Parents
  • 0

    Are you missing something? That depends on what expectations you have and what reference documentation you based your expectations on.

    But you might consider:

    #define CHARLIE

#if defined(CHARLIE)
#warning "Charlie was defined"
#else
#error "Charlie is undefined"
#endif

    "#warning" will give you a warning printout with your message text in the build log but will build the project.

    *** Using Compiler 'V5.05 update 2 (build 169)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
Build target 'Target 1'
compiling main.c...
main.c(4): warning:  #1215-D: #warning directive: "Charlie was defined"
  #warning "Charlie was defined"
main.c: 1 warning, 0 errors
linking...
Program Size: Code=312 RO-data=456 RW-data=0 ZI-data=608
".\Objects\test-1768.axf" - 0 Error(s), 2 Warning(s).
Build Time Elapsed:  00:00:00

    While #error" will produce a compilation error with your text message:

    Build target 'Target 1'
compiling main.c...
main.c(7): error:  #35: #error directive: "Charlie is undefined"
  #error "Charlie is undefined"
main.c: 0 warnings, 1 error
".\Objects\test-1768.axf" - 1 Error(s), 0 Warning(s).
Target not created.
Build Time Elapsed:  00:00:00

    Exactly what are your needs for non-warning and non-error messages during the build?

Reply
  • 0

    Are you missing something? That depends on what expectations you have and what reference documentation you based your expectations on.

    But you might consider:

    #define CHARLIE

#if defined(CHARLIE)
#warning "Charlie was defined"
#else
#error "Charlie is undefined"
#endif

    "#warning" will give you a warning printout with your message text in the build log but will build the project.

    *** Using Compiler 'V5.05 update 2 (build 169)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
Build target 'Target 1'
compiling main.c...
main.c(4): warning:  #1215-D: #warning directive: "Charlie was defined"
  #warning "Charlie was defined"
main.c: 1 warning, 0 errors
linking...
Program Size: Code=312 RO-data=456 RW-data=0 ZI-data=608
".\Objects\test-1768.axf" - 0 Error(s), 2 Warning(s).
Build Time Elapsed:  00:00:00

    While #error" will produce a compilation error with your text message:

    Build target 'Target 1'
compiling main.c...
main.c(7): error:  #35: #error directive: "Charlie is undefined"
  #error "Charlie is undefined"
main.c: 0 warnings, 1 error
".\Objects\test-1768.axf" - 1 Error(s), 0 Warning(s).
Target not created.
Build Time Elapsed:  00:00:00

    Exactly what are your needs for non-warning and non-error messages during the build?

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