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实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... local id = 0; local ttl = 100; local now = ngx.time(); local config = ngx.shared.config; if not config:get("id") then config:set("id", "0"); end while id >= tonumber(config:get("id")) do ...
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Naming of ID columns in database tables

... does this!)and forget to change the alias in the join condition. So you now have select t1.field1, t2.field2, t3.field3 from table1 t1 join table2 t2 on t1.id = t2.table1id join table3 t3 on t1.id = t3.table2id when you meant select t1.field1, t2.field2, t3.field3 from table1 t1 join table...
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When would anyone use a union? Is it a remnant from the C-only days?

... Great! In that case, I'm now wondering why the Sdl function wasn't just implemented as a class hierarchy. Is that to make it C compatible and not just C++? – Russel Jan 25 '11 at 12:42 ...
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Android encryption / decryption using AES [closed]

...y,encryptedData); This should work, I use similar code in a project right now. share | improve this answer | follow | ...
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What is the difference between MOV and LEA?

I would like to know what the difference between these instructions is: 12 Answers 12 ...
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Correct way to load a Nib for a UIView subclass

... I'm going to mark this correct. I don't know if it's best practice but it works. – Adam Waite Mar 14 '13 at 13:47 ...
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What's the point of map in Haskell, when there is fmap?

...feel the need for a map function? Couldn't it just be what is currently known as fmap and fmap could be removed from the language? ...
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Verifying a specific parameter with Moq

... multiple times when it wasn't called at all. They might have fixed it by now - but if you see that message you might consider verifying that the method was actually called. EDIT: Here is an example of calling verify multiple times for those scenarios where you want to verify that you call a funct...
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When should I use malloc in C and when don't I?

... char array ( a variable) and some_memory points to that allocated memory. Now this array is both read and write. You can now do: some_memory[0] = 'h'; and the array contents change to "hello World" share | ...
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How do I split a string on a delimiter in Bash?

... now after the fix applied, only within the duration of the read command :) – Johannes Schaub - litb May 28 '09 at 3:04 ...