Confluence's syntax highlighting in Code Block Macro have some functions that are not being highlighted.

Steps to reproduce:

1. Create a page.
2. Insert Code Block Macro with below code.

   void report_error(const char *msg) {
     enum { BUFFERSIZE = 24 };
     const char *error_log = msg;
     char buffer[BUFFERSIZE];
     
     snprintf(buffer, BUFFERSIZE, "Error: %s", error_log);
     printf("%s\n", buffer);
   }
   

You will notice that "printf" will be highlighted in pink but "snprintf" wont.

Thanks and Regards,
David|Atlassian Support