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What is the argument for printf that formats a long?
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printf("%ld", ULONG_MAX) outputs the value as -1. Should be printf("%lu", ULONG_MAX) for unsigned long as described by @Blorgbeard below.
– jammus
Nov 12 '11 at 16:03
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Unzipping files in Python
...pfile
with zipfile.ZipFile(path_to_zip_file, 'r') as zip_ref:
zip_ref.extractall(directory_to_extract_to)
That's pretty much it!
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AngularJS: ng-repeat list is not updated when a model element is spliced from the model array
...er you do some form of operation outside of AngularJS, such as doing an Ajax call with jQuery, or binding an event to an element like you have here you need to let AngularJS know to update itself. Here is the code change you need to do:
app.directive("remove", function () {
return function (sco...
Map Tiling Algorithm
...the shape of the edge.
The first step would be to find all edges. In the example below the edge tiles marked with an X are all green tiles with a tan tile as one or more of their eight neighbouring tiles. With different types of terrain this condition could translate to a tile being an edge tile if...
What does the Subversion status symbol “~” mean?
...are right. It is a directory now without a .svn file. Any idea on how to fix that? Do I need to delete it from subversion and add it again?
– jergason
May 12 '09 at 15:47
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How to convert a char to a String?
...efficient
// #2
String stringValueOfCharArray = String.valueOf(new char[]{x});
// #3
String characterToString = Character.toString('c');
// #4
String characterObjectToString = new Character('c').toString();
// #5
// Although this method seems very simple,
// this is less efficient because...
How to delete last item in list?
...e question correctly, you can use the slicing notation to keep everything except the last item:
record = record[:-1]
But a better way is to delete the item directly:
del record[-1]
Note 1: Note that using record = record[:-1] does not really remove the last element, but assign the sublist to r...
Where do “pure virtual function call” crashes come from?
...base class version, which in the case of a pure virtual function, doesn't exist.
(See live demo here)
class Base
{
public:
Base() { doIt(); } // DON'T DO THIS
virtual void doIt() = 0;
};
void Base::doIt()
{
std::cout<<"Is it fine to call pure virtual function from constructor?...
Installing rmagick on Ubuntu
...wered Aug 29 '13 at 3:33
Daniel X MooreDaniel X Moore
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Using switch statement with a range of value in each case?
...rite a switch statement where each case contains more than one value? For example (though clearly the following code won't work):
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