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Why does this code segfault on 64-bit architecture but work fine on 32-bit?
...ion returns int (since you opted not to tell it otherwise), so it tries to read the return value according to the calling convention for an int. Hence p does not necessarily point to the allocated memory. It just so happened to work for IA32 because an int and a void* are the same size, and returned...
When to use a “has_many :through” relation in Rails?
...rough is and when to use it (and how). However, I am not getting it. I am reading Beginning Rails 3 and I tried Googling, but I am not able to understand.
...
How do I loop through or enumerate a JavaScript object?
... logic to be only one nested loop in rather than two; making for easier to read code. Although I'd loose the the brackets around the continue; they are superfluous.
– SystemicPlural
Apr 6 '11 at 9:55
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How to serialize an object into a string
...constituted object");
System.out.println( some );
}
/** Read the object from Base64 string. */
private static Object fromString( String s ) throws IOException ,
ClassNotFoundException {
byte [] data = Base64.getDeco...
await vs Task.Wait - Deadlock?
...
Wait will synchronously block until the task completes. So the current thread is literally blocked waiting for the task to complete. As a general rule, you should use "async all the way down"; that is, don't block on async code. On my blog, I go into the details of how blocking in asynchronous cod...
Why Qt is misusing model/view terminology?
...ce to stay sane, but that would require a lot of work and research. A good read is Martin Fowler's overview.
Since there are so many different ideas what an MVC pattern can look like, which one is correct? In my opinion, the people who invented MVC should be turned to when we want to know how it is...
How to open a specific port such as 9090 in Google Compute Engine
...ine; I'd recommend using the GUI for that if needed because it handles the read-modify-write cycle with setinstancetags.
If you want to open port 9090 to all instances, you can create a firewall rule like:
gcutil addfirewall allow-9090 --allowed=tcp:9090
which will apply to all of your instances...
Converting XML to JSON using Python?
...
It's already been mentioned in newer answers. It still only covers a small subset of valid XML constructs, but probably the majority of what people use in practice.
– Dan Lenski
Dec 5 '18 at 11...
Finding current executable's path without /proc/self/exe
...specific interfaces:
Mac OS X: _NSGetExecutablePath() (man 3 dyld)
Linux: readlink /proc/self/exe
Solaris: getexecname()
FreeBSD: sysctl CTL_KERN KERN_PROC KERN_PROC_PATHNAME -1
FreeBSD if it has procfs: readlink /proc/curproc/file (FreeBSD doesn't have procfs by default)
NetBSD: readlink /proc/cur...
Parallel.ForEach vs Task.Run and Task.WhenAll
... Great answer, I was wondering if you could point me to a good reading material on this topic ?
– Dimitar Dimitrov
Apr 23 '14 at 9:03
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