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Is there any advantage of using map over unordered_map in case of trivial keys?
... used map before, because of the efficiency of lookup ( amortized O(1) vs. O(log n) ). Most times I use a map, I use either int or std::string as the key type; hence, I've got no problems with the definition of the hash function. The more I thought about it, the more I came to realize that...
Visual Studio 2013 doesn't discover unit tests
... read/write, sometimes only a portion of the tests come up. Definitely run VS as administrator in that case.
If your solution is 64 bit, make sure that Test > Test Settings > Default Processor Architecture is set to x64. Sometimes it gets set to x86. Set it to x64, then rebuild.
Sometimes just...
What is the purpose of mock objects?
...sting operation.
See Fowler's article for the more specifics about fakes vs stubs vs mocks vs dummies, but for now, let's focus on a mock cook.
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mock cook <- waiter <- test driver
A big part of unit testi...
How do I restore a missing IIS Express SSL Certificate?
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Note for VS2019 users: "Repair" will not work because the Visual Studio Installer does not put the MSI file where Control Panel expects it to be. However, there is a _package.json file in that same directory, and it contains the URL...
When to use .First and when to use .FirstOrDefault with LINQ?
...he result to be empty
From: http://www.technicaloverload.com/linq-single-vs-singleordefault-vs-first-vs-firstordefault/
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Determine the data types of a data frame's columns
...types
# A tibble: 32 x 11
mpg cyl disp hp drat wt qsec vs am gear carb
* <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl>
1 21 6 160 110 3.9 2.62 16.5 0 1 4 4
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snprintf and Visual Studio 2010
I'm unfortunate enough to be stuck using VS 2010 for a project, and noticed the following code still doesn't build using the non-standards compliant compiler:
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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...sender这边收到了3个Duplicated Acks，进入Fast Retransimit模式，开发重传重复Acks指示的那个包。如果只有这一个包丢了，那么，重传这个包后回来的Ack会把整个已经被sender传输出去的数据ack回来。如果没有的话，说明有多个包丢了。我...
Explanation of BASE terminology
...ns or requests where between RDMS versus Big Data.
From this article acid vs base
In Chemistry, pH measures the relative basicity and acidity of an
aqueous (solvent in water) solution. The pH scale extends from 0
(highly acidic substances such as battery acid) to 14 (highly alkaline
subst...
Android Min SDK Version vs. Target SDK Version
When it comes to developing applications for Android, what is the difference between Min and Target SDK version? Eclipse won't let me create a new project unless Min and Target versions are the same!
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