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How can I get the list of files in a directory using C or C++?
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In small and simple tasks I do not use boost, I use dirent.h which is also available for windows:
DIR *dir;
struct dirent *ent;
if ((dir = opendir ("c:\\src\\")) != NULL) {
/* print all the files and directories within director...
Convert pem key to ssh-rsa format
...m assuming no password for the keys (which is bad).
Generate an RSA pair
All the following methods give an RSA key pair in the same format
With openssl (man genrsa)
openssl genrsa -out dummy-genrsa.pem 2048
In OpenSSL v1.0.1 genrsa is superseded by genpkey so this is the new way to do it (man...
Difference between RegisterStartupScript and RegisterClientScriptBlock?
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a. When you use RegisterStartupScript, it will render your script after all the elements in the page (right before the form's end tag). This enables the script to call or reference page elements without the possibility of it not finding them in the Page's DOM.
Here is the rendered source of the ...
SQL Server Installation - What is the Installation Media Folder?
I am installing SQL Server 2008. I have installed .NET framework 3.5.
Then I got folder SQL Server 2008 and performed following steps-
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How does one create an InputStream from a String? [duplicate]
...may not be the one you want here). For me, this is UTF-8 (which can encode all Java Strings). The right answer would be "indicate the encoding you really want", not "use UTF-16". And you can use it with .getBytes(charsetName), don't have to explicitly create a Charset object and encode the String to...
Cookies on localhost with explicit domain
...unction.setcookie.php#73107.
If working with the Java Servlet API, don't call the cookie.setDomain("...") method at all.
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What's an easy way to read random line from a file in Unix command line?
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You can use shuf:
shuf -n 1 $FILE
There is also a utility called rl. In Debian it's in the randomize-lines package that does exactly what you want, though not available in all distros. On its home page it actually recommends the use of shuf instead (which didn't exist when it was cr...
How do I convert from int to String?
I'm working on a project where all conversions from int to String are done like this:
20 Answers
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Installing older version of R package
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To install an older version of a package from source (within R):
packageurl <- "http://cran.r-project.org/src/contrib/Archive/ggplot2/ggplot2_0.9.1.tar.gz"
install.packages(packageurl, repos=NULL, type="source")
If this doesn'...
Automatic vertical scroll bar in WPF TextBlock?
...g its vertical height. I expected a vertical scroll bar to appear automatically when that happens, but it didn't. I tried to look for a scroll bar property in the Properties pane, but could not find one.
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