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What is Cache-Control: private?

...r browser did have to suffer the delay of sending a request to the server, and wait for a response, but it did save having to re-download the static content. Why Max-Age? Why Expires? Because Last-Modified sucks. Not everything on the server has a date associated with it. If I'm building a page o...
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Using smart pointers for class members

I'm having trouble understanding the usage of smart pointers as class members in C++11. I have read a lot about smart pointers and I think I do understand how unique_ptr and shared_ptr / weak_ptr work in general. What I don't understand is the real usage. It seems like everybody recommends using...
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When is an interface with a default method initialized?

....4.1 ought to cover this definitively. However, the behavior of Oracle JDK and OpenJDK (javac and HotSpot) differs from what's specified here. In particular, the Example 12.4.1-3 from this section covers interface initialization. The example as follows: interface I { int i = 1, ii = Test.out("i...
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MFC中ComboBox控件的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...: //控件内容初始化 CString strTemp; ((CComboBox*)GetDlgItem(IDC_COMBO_CF))->ResetContent();//消除现有所有内容 for(int i=1;i<=100;i++) { strTemp.Format("%d",i); ((CComboBox*)GetDlgItem(IDC_COMBO_CF))->AddString(strTemp); } 3,下拉的时候添加,如: CString ...
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Simplest PHP example for retrieving user_timeline with Twitter API version 1.1

... It has taken me over one working week to be provided a set of API tokens, and this is for an open source project for you guys and girls with over 1.2 million installations on Packagist and 1.6k stars on Github, which theoretically should be higher priority. If you are tasked with working with the t...
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Can I have an IF block in DOS batch file?

.... You will unfortunately need to create nested blocks of if statements to handle that. Secondly, that %GPMANAGER_FOUND% == true test looks mighty suspicious to me. I don't know what the environment variable is set to or how you're setting it, but I very much doubt that the code you've shown will p...
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What is the correct answer for cout

...en updated. In particular: In a shift operator expression E1&lt;&lt;E2 and E1&gt;&gt;E2, every value computation and side-effect of E1 is sequenced before every value computation and side effect of E2. Which means that it requires the code to produce result b, which outputs 01. See P0145R3 Re...
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Convert a Git folder to a submodule retrospectively?

Quite often it is the case that you're writing a project of some kind, and after a while it becomes clear that some component of the project is actually useful as a standalone component (a library, perhaps). If you've had that idea from early on, then there's a fair chance that most of that code is ...
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std::function and std::bind: what are they, and when should they be used?

I know what functors are and when to use them with std algorithms, but I haven't understood what Stroustrup says about them in the C++11 FAQ . ...
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What is the 'dynamic' type in C# 4.0 used for?

... The dynamic keyword is new to C# 4.0, and is used to tell the compiler that a variable's type can change or that it is not known until runtime. Think of it as being able to interact with an Object without having to cast it. dynamic cust = GetCustomer(); cust.Fir...