禁止对无符号数进行无意义比较

1void foo(unsigned int x, unsigned int y)
2{
3    int always_true = x >= 0;
禁止对无符号数进行无意义比较 [gjb8114-r-1-12-4]
4    always_true = 0 <= x;
禁止对无符号数进行无意义比较 [gjb8114-r-1-12-4]
5    int always_false = y < 0;
禁止对无符号数进行无意义比较 [gjb8114-r-1-12-4]
6    always_false = 0 > y;
禁止对无符号数进行无意义比较 [gjb8114-r-1-12-4]
7}