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Using the scrollwheel in GNU screen
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For OS X (Snow Leopard), the following worked for me:
http://slaptijack.com/system-administration/mac-os-x-terminal-and-gnu-screen-scrollback/
Briefly, it involves adding the following to ~/.screenrc on the remote host (the one you're running screen on):
defscrollback 5000
ter...
ReactJS state vs prop
...mutability helpers
// to update more complex models.
// Read more: http://facebook.github.io/react/docs/update.html
var newState = React.addons.update(this.state, {
data: {value: {$set: 'it works'}}
});
this.setState(newState);
},
render: function() {
return <...
Forward an invocation of a variadic function in C
...a va_list instead of a variable number of arguments, you can't do it. See http://c-faq.com/varargs/handoff.html.
Example:
void myfun(const char *fmt, va_list argp) {
vfprintf(stderr, fmt, argp);
}
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Stopping python using ctrl+c
I have a python script that uses threads and makes lots of HTTP requests. I think what's happening is that while a HTTP request (using urllib2) is reading, it's blocking and not responding to Ctrl C to stop the program. Is there any way around this?
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How can I convince IE to simply display application/json rather than offer to download it?
...seudo-protocol. Enter a URL like this into the address bar:
view-source:http://myserver/MyUrl/That/emits/Application/json
This pseudo-protocol used to be supported in IE, also, until WinXP-sp2, when Microsoft disabled it for security reasons.
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When should I use a struct instead of a class?
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Bill Wagner has a chapter about this in his book "effective c#" (http://www.amazon.com/Effective-Specific-Ways-Improve-Your/dp/0321245660). He concludes by using the following principle:
Is the main responsability of the type data storage?
Is its public interface defined entirely ...
How to generate a core dump in Linux on a segmentation fault?
... exit(-1);
}
static void dumpstack(void) {
/* Got this routine from http://www.whitefang.com/unix/faq_toc.html
** Section 6.5. Modified to redirect to file to prevent clutter
*/
/* This needs to be changed... */
char dbx[160];
sprintf(dbx, "echo 'where\ndetach' | dbx -a %...
what is the unsigned datatype?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Using printf with a non-null terminated string
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What is the difference between instanceof and Class.isAssignableFrom(…)?
... Foo // syntax error
int.class.isAssignableFrom(int.class) // true
See http://java.sun.com/javase/6/docs/api/java/lang/Class.html#isAssignableFrom(java.lang.Class).
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