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How do I find out which process is locking a file using .NET?
...as impossible to reliably get the list of processes locking a file because Windows simply did not track that information. To support the Restart Manager API, that information is now tracked.
I put together code that takes the path of a file and returns a List<Process> of all processes that a...
移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...宽度设为ideal viewport的宽度，那么浏览器到底该服从哪个命令呢？是书写顺序在后面的那个吗？不是。当遇到这种情况时，浏览器会取它们两个中较大的那个值。例如，当width=400，ideal viewport的宽度为320时，取的是400；当width=400...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
...ecifiers, which shows the "mappings" of the specifiers to actual types (showing that the int is optional), a section of which is shown below:
Specifier(s) Type
------------- -------------
long long int long long int
long long long long int
long int long int
long ...
Is there hard evidence of the ROI of unit testing?
... the fundamental values of agile teams) or lost based on role power of the winning party. Even if the TDD-proponents win based on role power I'd count it as lost.
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Maximum Length of Command Line String
In Windows, what is the maximum length of a command line string? Meaning if I specify a program which takes arguments on the command line such as abc.exe -name=abc
...
What is the difference between Pan and Swipe in iOS?
...here's a conflict between pan and swipe. Most likely, your pan recognizer "wins" the conflict because its gesture is simpler / more general: A swipe is a pan but a pan may not be a swipe, so the pan recognizes first and excludes other recognizers.
You should be able to resolve this conflict using t...
Does pandas iterrows have performance issues?
...ly at the start of the iteration; this savings alone is one of the biggest wins.
Better caching: Iterating over a C array is cache-friendly and thus very fast. A pandas DataFrame is a "column-oriented table", which means that each column is really just an array. So the native actions you can perform...
String concatenation: concat() vs “+” operator
...thod should be faster. However, with more strings the StringBuilder method wins, at least in terms of performance.
The source code of String and StringBuilder (and its package-private base class) is available in src.zip of the Sun JDK. You can see that you are building up a char array (resizing as ...
What are the pros and cons of performing calculations in sql vs. in your application
shopkeeper table has following fields:
13 Answers
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...iplication, where my answer has a section on why rcpps is not a throughput win anymore. (Or a latency win), and numbers on divide throughput/latency.
– Peter Cordes
Apr 25 '18 at 11:38
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