大约有 45,000 项符合查询结果（耗时：0.0511秒） [XML]
smart pointers (boost) explained
...
Basic properties of smart pointers
It's easy when you have properties that you can assign each smart pointer. There are three important properties.
no ownership at all
transfer of ownership
share of ownership
The first means that a smart pointer cannot del...
Adding a Method to an Existing Object Instance
I've read that it is possible to add a method to an existing object (i.e., not in the class definition) in Python.
16 Answ...
What does “coalgebra” mean in the context of programming?
...they make everything look cooler!)
An algebra, then, is just a type τ with some functions and identities. These functions take differing numbers of arguments of type τ and produce a τ: uncurried, they all look like (τ, τ,…, τ) → τ. They can also have "identities"—elements of τ that ha...
How can I make a Python script standalone executable to run without ANY dependency?
...py files in .pyc, C compiled files, like .dll in Windows and .so on Linux.
It is much harder to revert than common .pyo and .pyc files (and also gain in performance!).
share
|
improve this answer
...
Named Branches vs Multiple Repositories
...rrently using subversion on a relatively large codebase. Each release gets its own branch, and fixes are performed against the trunk and migrated into release branches using svnmerge.py
...
Is there a good Valgrind substitute for Windows?
...king into Valgrind to help improve my C coding/debugging when I discovered it is only for Linux - I have no other need or interest in moving my OS to Linux so I was wondering if there is a equally good program for Windows.
...
Where can I find the Java SDK in Linux after installing it?
...
This depends a bit from your package system ... if the java command works, you can type readlink -f $(which java) to find the location of the java command. On the OpenSUSE system I'm on now it returns /usr/lib64/jvm/java-1.6.0-openjdk-1.6.0/...
Removing duplicates from a list of lists
...gt;> k = [[1, 2], [4], [5, 6, 2], [1, 2], [3], [4]]
>>> import itertools
>>> k.sort()
>>> list(k for k,_ in itertools.groupby(k))
[[1, 2], [3], [4], [5, 6, 2]]
itertools often offers the fastest and most powerful solutions to this kind of problems, and is well worth g...
What does “xmlns” in XML mean?
...
It defines an XML Namespace.
In your example, the Namespace Prefix is "android" and the Namespace URI is "http://schemas.android.com/apk/res/android"
In the document, you see elements like: <android:foo />
Think of...
Why can I throw null in Java? [duplicate]
...
It looks like it's not that null is treated as a NullPointerException, but that the act of attempting to throw null itself throws a NullPointerException.
In other words, throw checks that its argument is nonnull, and if it...