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Should struct definitions go in .h or .c file?

...r version: #include "api.h" void good(struct s *foo) { api_func(foo, 123); } This one pokes around in the implementation details: #include "api.h" void bad(struct s *foo) { foo->internal = 123; } which will work with the "definition in header" version, but not with the "definition...
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error C2804:binary \'operator +\' has too many parameters - C/C++ - 清泛网 - 专注C/C++及内核技术

...return ret; // return ret by value ,not by reference } 解决方法:+操作符包括两个操作数,应该重载为普通非成员函数。 注意重载操作符的形参数目(包括成员函数的隐式 this 指针)与操作符的操作数数目相同。对称的操作符,如算术...
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灾难恢复RTO 与 RPO - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

... 所谓 RTO,Recovery Time Objective,它是指灾难发生后,从 IT 系统当机导致业务停顿之时开始,到 IT 系统恢复至可以支持各部门运作、恢复运营之时,此两点之间的时间段称为 RTO。 所谓 RPO,Recovery Point Objective,是指从系统和应...
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涨姿势:全套支付宝系统架构(内部架构图) - 更多技术 - 清泛网 - 专注C/C...

涨姿势:全套支付宝系统架构(内部架构图)近期,支付宝机房故障,不仅引得网友为马云担心,还为自己在支付宝余额宝各种宝的巨款担心。 为了让大家更好的了解支付宝系统的运作,网友...近期,支付宝机房故障,不仅引...
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import module from string variable

...ike importlib.import_module("feature.email") – Seanny123 Dec 6 '13 at 7:13 11 Finally, also remem...
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Application auto build versioning

...ice that full package name is required. go build -ldflags "-X pkg.version=123" won't work while go build -ldflags "-X path/to/pkg.version=123" work as expected. hope it helps. – csyangchen Nov 25 '15 at 9:04 ...
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VC窗口刷新InvalidateRect和UpdateWindow - C/C++ - 清泛网 - 专注C/C++及内核技术

...示区域。 有时候应用也需要能够主动引发窗口中的绘制操作,比如当窗口显示的数据改变的时候,这一般是通过InvalidateRect和 InvalidateRgn函数来完成的。InvalidateRect和InvalidateRgn把指定的区域加到窗口的Update Region中,当应用的消...
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How can I capitalize the first letter of each word in a string?

...uld you make an addition to your answer that demonstrates this? E.g. lower 123 upper should return lower 123 Upper, where the upper is capitalized as it follows a number. I know it goes beyond the scope of the OP's question but a nice add-on to your already extensive answer. Thanks in advance. ...
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开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...大的Internet用户,试图影响大多数的Internet上的电子邮件系统,因此它是免费的。 2. 更快: postfix在性能上大约比sendmail快三倍。一部运行postfix的台式PC每天可以收发上百万封邮件。 3. 兼容性好: postfix是sendmail兼容的,从...
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App装到手机上就"失忆"?关于Activity生命周期的7个硬核问答 - A...

...App还部分可见(比如半透明弹窗覆盖),此时不应做耗时操作;Stop时App已经完全在后台,可以安全地保存数据。 在App Inventor 2中,实务做法是在Screen1.Pause里统一做持久化。因为这个事件在两种情况下都会触发,覆盖面最广。 ...