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A comment on The Preprocessor Iceberg Meme. Parent comment

Re:The Preprocessor Iceberg Meme by ttoinou on Thursday July 14, 2022 @03:19PM (#32100389)
Why do you need to start with while (0); ?
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Re:The Preprocessor Iceberg Meme by calahad on Thursday July 14, 2022 @03:24PM (#32100454)
https://bruceblinn.com/linuxinfo/DoWhile.html
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Re:The Preprocessor Iceberg Meme by ttoinou on Saturday July 23, 2022 @07:35AM (#32202382) 

  #define end_element()    \
    while (0);     \
    do {      \
   if (xmlTextWriterEndElement (xo) == -1) { \
     xml_error ("xmlTextWriterEndElement"); \
   }      \
    } while (0)
Talking about the first while (0);
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