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How do I detect unsigned integer multiply overflow?
...work on types smaller than int.
The builtins lower to what's best for the platform. On x86, they check the carry, overflow and sign flags.
Visual Studio's cl.exe doesn't have direct equivalents. For unsigned additions and subtractions, including <intrin.h> will allow you to use addcarry_uNN ...
Get the IP address of the remote host
...P.NET, while the self-hosted one on top of a WCF listener. Notice that the platform (ASP.NET Web API) itself is hosting-agnostic, so it's possible that someone will implement a different hosting in the future and the host will surface that property (remote endpoint) differently.
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Is this a “good enough” random algorithm; why isn't it used if it's faster?
...plementation designed. As far as I know, they are consistent for a certain platform but can differ e.g. between different mobile phones and between PC architectures. Although there are extra 'guard bits' sometimes added when doing a series of floating point calculations in a row, and the presence or...
DynamoDB vs MongoDB NoSQL [closed]
...oc count or db size. @jack don't "feel" but rely on testing, including the platform and hardware of final deployment; a week spent stuffing a couple db variants with data and benchmarking should lead to informed decisions saving lots of pain.
– zanlok
Nov 5 '14...
When to use Hadoop, HBase, Hive and Pig?
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I implemented a Hive Data platform recently in my firm and can speak to it in first person since I was a one man team.
Objective
To have the daily web log files collected from 350+ servers daily queryable thru some SQL like language
To replace dail...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...术上非常初级，并没有用到什么高深的技术，本人水平亦有限，如有差错，还请见谅！
开始之前的准备
正如C语言教程从 hello world 开始，我们也由一个 crackme 说开去。本文的例子程序你可以到这来下载:
http://www.crackme...
Android studio, gradle and NDK
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Yes. But that only works under Unix platforms and also limited if you a more complex than very simple ndk configuration/makefiles.
– plaisthos
Jun 6 '14 at 14:40
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What exactly does big Ө notation represent?
...hich are informative enough theoretically.
The exact number of ops is also platform dependent. For example, if we have a vector (list) of 16 numbers. How much ops will it take? The answer is: it depends. Some CPUs allow vector additions, while other don't, so the answer varies between different impl...
iPad/iPhone hover problem causes the user to double click a link
...e to be shown - you won't have any problems. The solution is to target iOS platform with secondary CSS file (or style in case of a JS approach) which overrides :hover background to inherit for example and keep hidden the elements you were going to display on mouse over:
Here is an example CSS and H...
Implicit type conversion rules in C++ operators
...pposed to be the most efficient integer type for operation on a particular platform. char must always be 1 but short can be the same size as int.
– Martin York
Apr 6 '11 at 8:08
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