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How to append a char to a std::string?
... It is more natural IMO for strings. push_back is container function, and a string is a specialized one in STL :)
– AraK
Sep 24 '09 at 14:38
6
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iPhone App 开发第一步：从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...机器（intel已经可以装lion了，此处不再讨论），应用darwin_snow_legacy.iso，进行引导，之后一路安装直至成功；
（2）安装完成后，装VMTools实现共享，以及声卡驱动；（3）之后要对系统进行升级（我是从10.6升级至10.6.7），升...
How to randomize (or permute) a dataframe rowwise and columnwise?
...] 1 0 0 1 0
[4,] 0 0 1 0 1
To explain the call:
out <- permatswap(mat, times = 99, burnin = 20000, thin = 500, mtype = "prab")
times is the number of randomised matrices you want, here 99
burnin is the number of swaps made before we start taking random samples....
Android file chooser [closed]
I want to make a file uploader. And I hence I need a file chooser but I don't want to write this by myself. I find OI file manager and I think it suits me.
But how can I force user to install OI file manager?
If I cannot , is there a better way to include a file manager in my app?
Thx
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LINQ query on a DataTable
...s.Cast<DataRow>().Where(myRow => (int)myRow["RowNo"] == 1). Personally, I don't find the call to AsEnumerable() any more complicated than the call to Cast<DataRow>(). As far as I know, the performance is the same, so it's just a matter of preference.
– Collin K
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How to check for a valid Base64 encoded string
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calling base64String.Contains multiple times may result in poor performance incase of base64String being a large string.
– NucS
Jul 23 '15 at 11:46
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Get and Set a Single Cookie with Node.js HTTP Server
...console.log('Server running at http://127.0.0.1:8124/');
This will store all cookies into the cookies object, and you need to set cookies when you write the head.
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How to use/install gcc on Mac OS X 10.8 / Xcode 4.4
I have install Mountain Lion (Mac OS X 10.8) and now gcc doesn't seem to be available anymore. I've also installed Xcode 4.4 so there is no more /Developer directory.
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Which letter of the English alphabet takes up most pixels?
...n 'Arial Black' on my MacBook in Chrome, lowercase m is the widest, by a small margin.
– Earl Jenkins
Feb 14 '12 at 22:25
15
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Storing sex (gender) in database
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I'd call the column "gender".
Data Type Bytes Taken Number/Range of Values
------------------------------------------------
TinyINT 1 255 (zero to 255)
INT 4 - 2,147,483,...