Sorry, it's my faults. I should change the line long b = (a & 0xFFFFFFFF); to long b = (a & 0xFFFFFFFFL);
--- 09年2月18日,周三, Jiang <webs...@yahoo.cn> 写道: 发件人: Jiang <webs...@yahoo.cn> 主题: [android-developers] Does bitwise operation "& " for the number of contains bug? 收件人: android-developers@googlegroups.com 日期: 2009,218,周三,4:41下午 Hello guys, I want to obtain least 32 bits from a number of type long, so I perform bitwise operation "&" on the number with bits mask 0xFFFFFFFF, but the result is error, it still contains other bits. for example: long a = 0x1234567890abL; long b = (a & 0xFFFFFFFF); I expect the value of b is 0x567890abL, but in practice, it is still 0x1234567890abL. Is this a bug ? Thanks. -John. 好玩贺卡等你发,邮箱贺卡全新上线! ___________________________________________________________ 好玩贺卡等你发,邮箱贺卡全新上线! http://card.mail.cn.yahoo.com/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---