1 extern void func(void);
   2 
   3 int global_function(void)
   4 {
   5         if (func)
   6                 return 1;
   7         return 0;
   8 }
   9 
  10 /*
  11  * check-name: Waddress-function
  12  * check-command: sparse -Wno-decl -Waddress $file
  13  *
  14  * check-error-start
  15 Waddress-function.c:5:13: warning: the address of a function will always evaluate as true
  16  * check-error-end
  17  */