/in/foo.c: In function 'main':
/in/foo.c:5:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '|' token
  int a=5,a|b=4,a&b=7;
           ^
/in/foo.c:5:6: warning: unused variable 'a' [-Wunused-variable]
  int a=5,a|b=4,a&b=7;
      ^