Guest:
Register
|
Login
|
Statistics
|
FAQ
Symbian OS系统[S60,UIQ]开发中文翻译论坛
»
Symbian技术
» 用NewL() 和NewLC()实现两阶段构建
‹‹ Last Thread
|
Next Thread ››
Poll
Trade
Reward
Activity
Printable Version
|
Email to Friend
|
Subscription
|
Favorites
Subject: 用NewL() 和NewLC()实现两阶段构建
admin
Administrator
UID 1
Digest Posts 0
Credits 2856
Posts 52
Money 11
Reading Access 200
Registered 8-3-2007
Status Offline
#1
Post at 14-3-2007 22:38
Profile
|
Blog
|
P.M.
用NewL() 和NewLC()实现两阶段构建
如果某个复合对象有一个NewL()方法(或NewLC()方法),那么就应该同时包含构造过程的两个阶段。分配阶段之后,如果ConstructL()发生了异常,应该在调用ConstructL()之前将该对象推入到清除堆栈中。例如:
[Copy to clipboard]
CODE:
CMyCompoundClass* CMyCompoundClass::NewLC()
{
CMyCompoundClass* self = new (ELeave) CMyCompoundClass;
CleanupStack::PushL(self);
self->ConstructL();
return self;
}
CMyCompoundClass* CMyCompoundClass::NewL()
{
CMyCompoundClass* self = new (ELeave) CMyCompoundClass;
CleanupStack::PushL(self);
self->ConstructL();
CleanupStack::Pop(); // self
return self;
}
Poll
Trade
Reward
Activity
Visited forums ...
我来供稿
Python讨论专区
S60主题、皮肤
最新Symbian新闻
海阔天空
ScreenShot
公告
Symbian官方
Symbian OS系统[S60,UIQ]开发中文翻译论坛
资料翻译
> Forum Nokia
> NewLC
> Symbian官方
> Others
> 我来供稿
开源项目研究
> ScreenShot
讨论区
> 最新Symbian新闻
> Symbian技术
> Python讨论专区
生活娱乐
> Symbian游戏(S60、UIQ)
> S60主题、皮肤
> 海阔天空
站内建设
> 公告
> 建议
> 网站合作、链接申请
All times are GMT+8, the time now is 7-9-2010 02:49
CopyRight ©
Symbianx.cn
2007 Powered By
Discuz! 5
TOP
Clear Cookies
-
Contact Us
-
Symbian OS系统[S60,UIQ]开发中文翻译论坛
-
Archiver
本站原文版权归原文作者所有,本站译文版权归本站所有,如需转载请注明原文和译文出处,否则追究法律责任