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How can I reliably determine the type of a variable that is declared using var at design time?
...hat statement. For example, suppose you have the method body:
String x = "hello";
var y = x.ToCharArray();
var z = from foo in y where foo.
and now we need to work out that foo is of type char. We build a database that has all the metadata, extension methods, source code types, and so on. We bui...
Most simple but complete CMake example
...le but complete CMakeLists.txt files sample.
Source Code
Tutorials from hello world to cross platform Android/iOS/Web/Desktop.
Each platform I released a sample application.
The 08-cross_platform file struct is verified by my work
It may be not perfect but useful & best practice for a team on...
How exactly does the callstack work?
...eat deal on the architecture and ABI. There are quite a few architectures (hello Itanium) where the whole thing is.. more interesting (and there are things like variable sized argument lists!)
– Voo
Jun 2 '14 at 0:37
...
In Python, how do I determine if an object is iterable?
...
Note that in Python 3: hasattr(u"hello", '__iter__') returns True
– Carlos
Apr 21 '14 at 2:27
...
Seeking clarification on apparent contradictions regarding weakly typed languages
...Eric has said, consider the following C code:
void f(void* x);
f(42);
f("hello");
In contrast to languages such as Python, C#, Java or whatnot, the above is weakly typed because we lose type information. Eric correctly pointed out that in C# we can circumvent the compiler by casting, effectively...
Best way to test for a variable's existence in PHP; isset() is clearly broken
... I'll edit it down later...)
Consider the following code:
$test_value = 'hello';
foreach ( $list_of_things as $thing ) {
if ( some_test($thing, $test_value) ) {
$result = some_function($thing);
}
}
if ( isset($result) ) {
echo 'The test passed at least once!';
}
If some_funct...
How to convert a number to string and vice versa in C++
...you use it as;
string str = make_string() << 6 << 8 << "hello";
Quite nifty!
Also I use this function to convert strings to anything streamable, althrough its not very safe if you try to parse a string not containing a number;
(and its not as clever as the last one either)
//...
Getting started with Haskell
...this is where I'm at).
Expert
It will take you years to get to this stage (hello from 2009!), but from here I'm guessing you start writing phd papers, new ghc extensions, and coming up with new abstractions.
Getting Help
Finally, while at any stage of learning, there are multiple places for getting ...
What is a raw type and why shouldn't we use it?
...rom Object to the desired type.
List aList = new ArrayList();
String s = "Hello World!";
aList.add(s);
String c = (String)aList.get(0);
While this worked most of the time, errors did happen
List aNumberList = new ArrayList();
String one = "1";//Number one
aNumberList.add(one);
Integer iOne = (In...
What's the “big idea” behind compojure routes?
... library.
(use 'ring.util.response)
(defn handler [request]
(response "Hello World"))
Now we want to call different handlers depending on the request.
We could do some static routing like so :
(defn handler [request]
(or
(if (= (:uri request) "/a") (response "Alpha"))
(if (= (:uri r...