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What is the difference between an IntentService and a Service? [duplicate]
... app; when you extends Service, you must manually spawn new threads to run CPU blocking operations.
vs
IntentService is a subclass of Service which spawns a thread to do background work from there(No need to create a new thread to do CPU blocking operations).
...
C#位运算符（C#按位与、按位或 等） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...为1的位，新数中相应位为0。
（2）取一个数中某些指定位。
如想要取一个整数a（占2个字节）的低（高）字节，只需将a与八进制的377（177400）按位与即可。
（3）保留某一个数的某一位。
与一个数进行&运算...
了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...于处理文件系统操作的库，这一直是 C++ 语言存在的一个问题。过去，程序员必须使用本机 API 来解决此问题。通过本文您将了解一个提供安全、可移植且易用的 C++ 接口来促进文件系统操作的库：Boost Filesystem Library。
创建与...
Image comparison - fast algorithm
... if a good match is found at the faster level.
file-hash based (md5,sha1,etc) for exact duplicates
perceptual hashing (phash) for rescaled images
feature-based (SIFT) for modified images
I am having very good results with phash. The accuracy is good for rescaled images. It is not good ...
What killed my process and why?
...r get invoked?
Say you have 512 RAM + 1GB Swap memory. So in theory, your CPU has access to total of 1.5GB of virtual memory.
Now, for some time everything is running fine within 1.5GB of total memory. But all of sudden (or gradually) your system has started consuming more and more memory and it r...
Simple proof that GUID is not unique [closed]
...s licensed under the following terms: you must pay me $0.0001 per hour per CPU core you run it on. Fees are payable at the end of each calendar month. Please contact me for my paypal account details at your earliest convenience.
using System;
using System.Collections.Generic;
using System.Linq;
na...
Performance of Java matrix math libraries? [closed]
... not? For some purposes, eg when one is parallelizing using mpi or hadoop etc, the important time is actually the singlecore time, since the mpi/hadoop implementation takes care of parallelizing things. (At least, for me jblas was about 2.5 faster than jama, not 10 times faster than jama as you got...
据说这是一个程序员的手机......... - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...坏在半路上了。于是两位工程师和一位经理就如何修车的问题展开了讨论。硬件工程师说：“我可以用随身携带的瑞士军刀把车坏的部分拆下来，找出原因，排除故障。”项目经理说：“根据经营管理学，应该召开会议，根据问...
VS Debug调试模式下内存泄露检测原理 - C/C++ - 清泛网 - 专注C/C++及内核技术
...前已经释放过了，或者根本就没分配过，可能存在潜在的问题）。程序退出的时候，如果链表还有数据，说明存在内存泄露，输出链表中的数据。
MS CRT已支持内存泄露的检测，使用MFC向导生成的工程，在DEBUG模式下，默认会...
解决：vs2010调试程序时出现： “当前不会命中断点。源代码与原始版本不同...
...
二、新建解决方案，新建测试项目均不会出现此问题。则问题应该出现在出问题的解决方案设置或项目设置上，怀疑调试时候，修改的程序集没有重新编译。，
查看程序的“配置管理器”，将 “生成” 勾选，再试，问...