[ET Trac] [Einstein Toolkit] #1186: Provide a version of CCTK_WARN which never returns

[Einstein Toolkit]

#1186: Provide a version of CCTK_WARN which never returns
--------------------------+-------------------------------------------------
  Reporter:  hinder       |       Owner:     
      Type:  enhancement  |      Status:  new
  Priority:  minor        |   Milestone:     
 Component:  Cactus       |     Version:     
Resolution:               |    Keywords:     
--------------------------+-------------------------------------------------

Comment (by knarf):

 I would probably omit the do-while (only using a pair of {}):

 {{{
 #define CCTK_VError(...)     \
 {                             \
   CCTK_VWarn(0,__VA_ARGS__); \
   exit(0);                   \
 }
 }}}

 As to the attribute: we could set it but we otherwise often try to conform
 to standards most of the time, and IMHO we should if we can. I am not sure
 if all 'important compilers' support this attribute and before we use it
 we should be sure that all do. Then of course we might hit the problem
 that codes already using

 {{{
   CCTK_WARN(0,"");
   exit(1);
 }}}

 could produce a warning that the call to exit cannot be reached if a
 compiler suddenly knows that CCTK_WARN will not return. :)

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/1186#comment:8>
Einstein Toolkit <http://einsteintoolkit.org>
The Einstein Toolkit