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Specifically, what's dangerous about casting the result of malloc?
Now before people start marking this a dup, I've read all the following, none of which provide the answer I'm looking for:
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How can I get the list of files in a directory using C or C++?
...Ronkko. In Unix, it is a standard header.
UPDATE 2017:
In C++17 there is now an official way to list files of your file system: std::filesystem. There is an excellent answer from Shreevardhan below with this source code:
#include <string>
#include <iostream>
#include <filesystem>...
Python __str__ versus __unicode__
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These I think are solid principles, but in practice it's very common to KNOW there will be nothing but ASCII characters without doing effort to prove it (e.g. the stringified form only has digits, punctuation, and maybe a short ASCII name;-) in which case it's quite typical to move on directly to ...
Getting a random value from a JavaScript array
...ple = function(){
return this[Math.floor(Math.random()*this.length)];
}
Now:
[1,2,3,4].sample() //=> a random element
Code released into the public domain under the terms of the CC0 1.0 license.
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How to print without newline or space?
...t to answer @Rishav flush empties the buffer and displays the output right now. Without flush you might have your exact text printed eventually, but only when the system gets around to processing the graphics instead of the IO. Flush makes the text visible immediately by "flushing" the cache.
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Loading Backbone and Underscore using RequireJS
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RequireJS 2.X now organically addresses non-AMD modules such as Backbone & Underscore much better, using the new shim configuration.
The shim configuration is simple to use: (1) one states the dependencies (deps), if any, (which may...
c#: getter/setter
...omething like the following somewhere, and was wondering what it meant. I know they are getters and setters, but want to know why the string Type is defined like this. Thanks for helping me.
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Calling Python in Java?
...cpython! You do not need any jni or jna or swig or .... You don't need to know any c, or c++. kool huh?
Advantages: Access to cpython, not as difficult as following methods
Disadvantages: Cannot change the member data of java objects directly from python. Is somewhat indirect, (jython is middle man)...
Node.js app can't run on port 80 even though there's no other process blocking the port
... Not sure why, but on Ubuntu 14.04 this did not work for me. I now use port forwarding via ssh, which is just as easy. I posted an answer below.
– panepeter
Feb 27 '18 at 9:12
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How do I access the request object or any other variable in a form's clean() method?
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UPDATED 10/25/2011: I'm now using this with a dynamically created class instead of method, as Django 1.3 displays some weirdness otherwise.
class MyModelAdmin(admin.ModelAdmin):
form = MyCustomForm
def get_form(self, request, obj=None, **kw...