/in/foo.cc: In function 'int F(int, int, int)':
/in/foo.cc:5:9: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   if(a&i==b)
        ~^~~
/in/foo.cc:6:10: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
    if(a|i==c)
         ~^~~
/in/foo.cc:8:9: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses]
   if(a&i==c)
        ~^~~
/in/foo.cc:9:10: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
    if(a|i==c)
         ~^~~