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How do I use extern to share variables between source files?
...ler is informed that a
variable exists (and this is its type); it does not allocate the
storage for the variable at that point.
A variable is defined when the compiler allocates the storage for
the variable.
You may declare a variable multiple times (though once is sufficient);
you may only defin...
Why is it string.join(list) instead of list.join(string)?
...
I do not agree conceptually even if It makes sense codewise. list.join(string) appears more an object-oriented approach whereas string.join(list) sounds much more procedural to me.
– Eduardo Pignatelli
Jan 14 ...
Getting the max value of an enum
...order, so you can do something like this:
// given this enum:
public enum Foo
{
Fizz = 3,
Bar = 1,
Bang = 2
}
// this gets Fizz
var lastFoo = Enum.GetValues(typeof(Foo)).Cast<Foo>().Last();
Edit
For those not willing to read through the comments: You can also do it this way:
...
What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
...e. Now the software has a few dependencies. I compiled them myself and installed them on my system.
4 Answers
...
How to create module-wide variables in Python? [duplicate]
...
Here is what is going on.
First, the only global variables Python really has are module-scoped variables. You cannot make a variable that is truly global; all you can do is make a variable in a particular scope. (If you make a variable inside the Python interpreter, and then import other mo...
How do I detect whether a Python variable is a function?
...
If this is for Python 2.x or for Python 3.2+, you can also use callable(). It used to be deprecated, but is now undeprecated, so you can use it again. You can read the discussion here: http://bugs.python.org/issue10518. You can do this with:
callable(obj)
If this is for Python 3.x but ...
Package objects
...
Normally you would put your package object in a separate file called package.scala in the package that it corresponds to. You can also use the nested package syntax but that is quite unusual.
The main use case for package object...
Pass Variables by Reference in Javascript
... it means that it's possible to pass a simple variable in such a way as to allow a function to modify that value in the calling context. So:
function swap(a, b) {
var tmp = a;
a = b;
b = tmp; //assign tmp to b
}
var x = 1, y = 2;
swap(x, y);
alert("x is " + x + ", y is " + y); // "...
`from … import` vs `import .` [duplicate]
...
I just tried import urllib.request and it doesn't work at all (python 2.6.5 Ubuntu).
– tkone
Feb 24 '12 at 23:33
6
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Difference between passing array and array pointer into function in C
... undefined.
Given the following code:
int main(void)
{
int arr[10];
foo(arr);
...
}
In the call to foo, the array expression arr isn't an operand of either sizeof or &, so its type is implicitly converted from "10-element array of int" to "pointer to int" according to 6.2.3.1/3. Thus,...