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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,...
How are echo and print different in PHP? [duplicate]
...e to use print() only for situations like:
echo 'Doing some stuff... ';
foo() and print("ok.\n") or print("error: " . getError() . ".\n");
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Python: Bind an Unbound Method?
In Python, is there a way to bind an unbound method without calling it?
5 Answers
5
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Should import statements always be at the top of a module?
...t that's only paid once.
Putting the imports within a function will cause calls to that function to take longer.
So if you care about efficiency, put the imports at the top. Only move them into a function if your profiling shows that would help (you did profile to see where best to improve perform...
Get all unique values in a JavaScript array (remove duplicates)
...l loop through the array and leave only those entries that pass the given callback function onlyUnique.
onlyUnique checks, if the given value is the first occurring. If not, it must be a duplicate and will not be copied.
This solution works without any extra library like jQuery or prototype.js.
It w...
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...
How to get a substring between two strings in PHP?
...ieves that. I do not want to think about regex (well, I could do one but really don't think it's the best way to go). Thinking of strpos and substr functions.
Here's an example:
...
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 ...
Mercurial (hg) commit only certain files
...of hg having auto-add whenever I try to commit a change it wants to commit all files. But I don't want that because certain files are not "ready" yet.
...
Django - filtering on foreign key properties
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You can add a .query.as_sql() to see what sql will actually be executed.
– fastmultiplication
Jul 17 '10 at 5:19
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