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Fastest way to check if a file exist using standard C++/C++11/C?
I would like to find the fastest way to check if a file exist in standard C++11, C++, or C. I have thousands of files and before doing something on them I need to check if all of them exist. What can I write instead of /* SOMETHING */ in the following function?
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List the queries running on SQL Server
...ly running on MS SQL Server (either through the Enterprise Manager or SQL) and/or who's connected?
17 Answers
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java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
i am using spring 3.1.0.RELEASE , and my servlet container is tomcat 7 and my IDE is eclipse indigo
and the jar spring-webmvc-3.1.0.RELEASE.jar which contains the DispatcherServlet
exists in the lib folder, and yet when running the application, i am getting the exception:
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best way to preserve numpy arrays on disk
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h5py example and pytables example
– Kamil Slowikowski
Sep 23 '16 at 13:15
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How to Create Deterministic Guids
...h) is that these are guaranteed not to collide with non-named-based UUIDs, and have a very (very) small possibility of collision with other name-based UUIDs.
There's no native support in the .NET Framework for creating these, but I posted code on GitHub that implements the algorithm. It can be used...
Any way to properly pretty-print ordered dictionaries?
I like the pprint module in Python. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window.
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What are all the uses of an underscore in Scala?
I've taken a look at the list of surveys taken on scala-lang.org and noticed a curious question: " Can you name all the uses of “_”? ". Can you? If yes, please do so here. Explanatory examples are appreciated.
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Search and replace in bash using regular expressions
...is method, i.e. perl, awk, e.g.:
echo "$MYVAR" | perl -pe 's/[a-zA-Z]/X/g and s/[0-9]/N/g'
This may allow you to do more creative matches... For example, in the snip above, the numeric replacement would not be used unless there was a match on the first expression (due to lazy and evaluation). A...
How do you find out the caller function in JavaScript?
... alert("caller is " + Hello.caller);
}
Note that this feature is non-standard, from Function.caller:
Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompa...
How to remove items from a list while iterating?
I'm iterating over a list of tuples in Python, and am attempting to remove them if they meet certain criteria.
26 Answers
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