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Is there a concise way to iterate over a stream with indices in Java 8?
...
The cleanest way is to start from a stream of indices:
String[] names = {"Sam", "Pamela", "Dave", "Pascal", "Erik"};
IntStream.range(0, names.length)
.filter(i -> names[i].length() <= i)
.mapToObj(i -> names[i])
.coll...
C++ - passing references to std::shared_ptr or boost::shared_ptr
...nge and when it noticed the state of the object had changed, it removed it from the collection of objects in the previous state and moved it into the collection of objects in the new state. The remove operation destroyed the last shared pointer to the object. The member function had been called on a...
How can I archive git branches?
... the branch just check out the tag. It will effectively restore the branch from the tag.
To archive and delete the branch:
git tag archive/<branchname> <branchname>
git branch -d <branchname>
To restore the branch some time later:
git checkout -b <branchname> archive/<...
Change File Extension Using C#
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@Alex I am not moving a file, i get file path from broswer like c:\..\..\a.jpg, and the file format on physical path is a.Jpeg, so when i try to delete it, it gives me error cannot find the file on specified path. so i am thinking it has some to do with the file extensio...
How to use ELMAH to manually log errors
... API:
try
{
some code
}
catch(Exception ex)
{
Elmah.ErrorSignal.FromCurrentContext().Raise(ex);
}
There is a difference between the two solutions:
Raise method applies ELMAH filtering rules to the exception. Log method does not.
Raise is subscription based and is able to log one excep...
Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
... need correcting. It was chosen very deliberately and correctly at that. From the closest source to hand (Wikipedia) : "In most languages, the word coercion is used to denote an implicit conversion, either during compilation or during run time." and "In computer science, type conversion, typecasti...
Coloring white space in git-diff's output
...r.diff or color.ui set to auto since you say that you see coloured patches from git diff anyway.)
If you want to fine tune the type of whitespace errors that are highlighted in red, you can then change core.whitespace, but blank-at-eol is enabled by default so you probably won't need to change that...
What's the difference between Cache-Control: max-age=0 and no-cache?
...ieve max-age=0 simply tells caches (and user agents) the response is stale from the get-go and so they SHOULD revalidate the response (eg. with the If-Not-Modified header) before using a cached copy, whereas, no-cache tells them they MUST revalidate before using a cached copy. From 14.9.1 What is C...
How come a non-const reference cannot bind to a temporary object?
...
From this Visual C++ blog article about rvalue references:
... C++ doesn't want you to accidentally
modify temporaries, but directly
calling a non-const member function on
a modifiable rvalue is explicit, so
it's ...
What's the difference between a Future and a Promise?
...s no no-argument constructor, and both Future and FutureTask are read-only from the outside (the set methods of FutureTask are protected). The value will be set to the result of the computation from the inside.
On the other hand, the result of a promise can be set by "you" (or in fact by anybody) a...