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What does a just-in-time (JIT) compiler do?
What does a JIT compiler specifically do as opposed to a non-JIT compiler? Can someone give a succinct and easy to understand description?
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C++ : why bool is 8 bits long?
...can't. But you can create a pointer to a byte. So a boolean in C++ is typically byte-sized. (It may be larger as well. That's up to the implementation. The main thing is that it must be addressable, so no C++ datatype can be smaller than a byte)
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Sleeping in a batch file
... a Windows box, I've needed to pause its execution for several seconds (usually in a test/wait loop, waiting for a process to start). At the time, the best solution I could find uses ping (I kid you not) to achieve the desired effect. I've found a better write-up of it here , which describes a call...
Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error:
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You deserve more than a +1 but +1 is all I have to give
– David
Dec 5 '13 at 14:59
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'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine
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Well, you need to install it. You're looking for:
The 2007 Office System Driver: Data Connectivity Components.
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Async/await vs BackgroundWorker
...on the thread only when the method is active. You can use Task.Run to move CPU-bound work to a background thread, but a background thread doesn't help with a process that's just waiting for results to become available.
The async-based approach to asynchronous programming is preferable to existing ap...
Why aren't variable-length arrays part of the C++ standard?
...agree that having to create a potential large array on the stack, which usually has only little space available, isn't good. The argument is, if you know the size beforehand, you can use a static array. And if you don't know the size beforehand, you will write unsafe code.
C99 VLAs could provide a...
Where can I get a list of Ansible pre-defined variables?
...h0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me?
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How to create an infinite loop in Windows batch file?
...ver reason. It may however be wise to put a small wait in the loop to stop cpu thrashing if my program dies instantly for some reason.
– John Hunt
Jun 17 '15 at 10:27
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技术人员如何创业《一》—— 产品及想法 - 资讯 - 清泛网 - 专注C/C++及内核技术
...品及想法：
什么是好的产品？一个朋友之前问到，这个问题要系统的回答还真有点不好说。看一下比较理论的解释，产品指一个能够满足用户的需求，我们能够使用可行的技术手段实现并且通过销售给用户给公司带来利润。好...