Remark #880-D

Ralf Rink said:

Is it possible to suppress these warnings local (where i want it /not in a global way)?

Yes.  There are pragmas you can use.  There are 2 ways to go about it.  Use the one you prefer.

I notice from your other posts that you use the C2000 compiler.  So that is the one I use in the examples below.

Here is an example that gets two remarks for the argument not_used.

/* file.c */
int f1(int used, int not_used)
{
   return used + 1;
}

int f2(int used, int not_used)
{
   return used + 2;
}

Building with these options shows the diagnostics and their identifying number ...

>>>>cl2000 --issue_remarks --display_error_number file.c
"file.c", line 2: remark #880-D: parameter "not_used" was never referenced
"file.c", line 7: remark #880-D: parameter "not_used" was never referenced

One method is to use the pragmas diag_suppress and diag_default ...

/* file.c */
#pragma diag_suppress 880
int f1(int used, int not_used)
{
   return used + 1;
}
#pragma diag_default 880

int f2(int used, int not_used)
{
   return used + 2;
}

Now the first diagnostic is suppressed ...

>>>>cl2000 --issue_remarks --display_error_number file.c
"file.c", line 9: remark #880-D: parameter "not_used" was never referenced

The other method is to use the pragmas diag_push, diag_suppress, and diag_pop ...

/* file.c */
#pragma diag_push
#pragma diag_suppress 880
int f1(int used, int not_used)
{
   return used + 1;
}
#pragma diag_pop

int f2(int used, int not_used)
{
   return used + 2;
}

Building also shows only one diagnostic ...

>>>>cl2000 --issue_remarks --display_error_number file.c
"file.c", line 10: remark #880-D: parameter "not_used" was never referenced

Please read more about these pragmas in the C2000 compiler manual.

Thanks and regards,

-George

You can also use attribute "unused":

/* file.c */
int f1(int used, int not_used __attribute__((unused)))
{
   return used + 1;
}

int f2(int used, int not_used __attribute__((unused)))
{
   return used + 2;
}

Hello,

i'm using __attribute__((unused)) to surpress my warnings and it works well.

I've got some remarks of type "#2142-D comparison between signed and unsigned operands" and surpress them with

#pragma diag_suppress 2142
...
#pragma diag_default 2142

Further on i get remark "#1463-D Link-time optimization is disabled for this file due to the use of inline assembly".

Is there also a possibility to supress both remarks with __attribute ... or something similar?

Kind regards Ralf

Not to my knowledge. You can suppress these remarks with a command line option like --diag_suppress=1463