5 return (c
^ 30 ) > (c
^ 40 );
7 these also get the signal :
8 return (c ^ 30 ) == (c ^ 40 );
9 return ((int)c ^ 30 ) > (c ^ 40 );
10 also fails if c is "extern char"
13 return (c + 30 ) > (c ^ 40 );
14 return (c ^ 30 ) > (c + 40 );
15 return (c ^ 30 ) + (c ^ 40 );
16 return ('a' ^ 30 ) > (c ^ 40 );
18 return (c ^ 30 ) > (c ^ 40 );