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Why is (object)0 == (object)0 different from ((object)0).Equals((object)0)?
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When you cast the int value 0 (or any other value type) to object, the value is boxed. Each cast to object produces a different box (i.e. a different object instance). The == operator for the object type performs a reference compariso...
Count the items from a IEnumerable without iterating?
...enumerator.MoveNext())
result++;
}
return result;
So it tries to cast to ICollection<T>, which has a Count property, and uses that if possible. Otherwise it iterates.
So your best bet is to use the Count() extension method on your IEnumerable<T> object, as you will get the bes...
How to know/change current directory in Python shell?
...When I open the Python shell, how can I know what the current directory is and how can I change it to another directory where my modules are?
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How to find the operating system version using JavaScript?
How can I find the OS name and OS version using JavaScript?
13 Answers
13
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How can I iterate over files in a given directory?
I need to iterate through all .asm files inside a given directory and do some actions on them.
9 Answers
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Find current directory and file's directory [duplicate]
In Python, what commands can I use to find:
13 Answers
13
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Use 'import module' or 'from module import'?
...use import module or from module import . I've just started with Python and I'm trying to start off with best practices in mind.
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How do I copy an entire directory of files into an existing directory using Python?
...ctory that contains a directory named bar (containing one or more files) and a directory named baz (also containing one or more files). Make sure there is not a directory named foo .
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What does T&& (double ampersand) mean in C++11?
...t[]> ptr2{ptr1};// compile error: no copy ctor.
// So we must first cast ptr1 to an rvalue
std::unique_ptr<int[]> ptr2{std::move(ptr1)};
std::unique_ptr<int[]> TakeOwnershipAndAlter(std::unique_ptr<int[]> param,\
int size)
{
for (auto i = 0; i < size; ++i) {...
OS detecting makefile
I routinely work on several different computers and several different operating systems, which are Mac OS X, Linux, or Solaris. For the project I'm working on, I pull my code from a remote git repository.
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