2 ms·
!!p does the same as p!=NULL. The choice is purely stylistic. (!p is equivalent to p==NULL; !!p is therefore equivalent to !(p==NULL). Or, alternatively, p!=NUL
by to3m 13y ago
!!p does the same as p!=NULL. The choice is purely stylistic. (!p is equivalent to p==NULL; !!p is therefore equivalent to !(p==NULL). Or, alternatively, p!=NULL.)