suggest parentheses around comparison in operand of &|
warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses]
该警告希望你在&(逻辑与)表达式左右加上括号。有的时候&&(逻辑且)少写了一个&,也会产生该警告。
例如: if((a[2]>>1)&0x1 == 1){
.........
}
应该将 (a[2]>>1)&0x1 用()号括起来。因为&运算符的优先级较低,低于==和!=运算符。