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How to use C++ in Go

... Update: I've succeeded in linking a small test C++ class with Go If you wrap you C++ code with a C interface you should be able to call your library with cgo (see the example of gmp in $GOROOT/misc/cgo/gmp). I'm not sure if the idea of a class in C++ is really exp...
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Lock Escalation - What's happening here?

...t the LOCK_ESCALATION is set as a last statement in the script. I did few tests and here is my understanding of what is happening here. Short version The ALTER TABLE statement that adds, drops or alters a column implicitly takes a schema modify (SCH-M) lock on the table, which has nothing to do w...
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?

...;var.int1+diff==&var.int2)' is false. From what I can say with my puny test cases, you are Stop at 0x0013f3: (106) Invalid instruction 0x00dd printf crashes. "O_O" gcc 4.4@x86_64-suse-linux We like to think that: ..05 int has the size of pointers but 'sizeof(int)==sizeof(void*)' is false. ...
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Quickly reading very large tables as dataframes

... Thanks for the tips Richie. I did a little testing, and it seems that the performance gains with using the nrow and colClasses options for read.table are quite modest. For example, reading a ~7M row table takes 78s without the options, and 67s with the options. (note...
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Python speed testing - Time Difference - milliseconds

What is the proper way to compare 2 times in Python in order to speed test a section of code? I tried reading the API docs. I'm not sure I understand the timedelta thing. ...
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ADB Install Fails With INSTALL_FAILED_TEST_ONLY

... Looks like you need to modify your AndroidManifest.xml Change android:testOnly="true" to android:testOnly="false" or remove this attribute. If you want to keep the attribute android:testOnly as true you can use pm install command with -t option, but you may need to push the apk to device first...
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check if directory exists and delete in one command unix

...ot. This command may work and produce similar results but actually doing a test before the command makes more sense. – Ankur Chauhan Jan 28 '13 at 5:04 ...
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Using the “start” command with parameters passed to the started program

... If you want passing parameter and your .exe file in test folder of c: drive start "parameter" "C:\test\test1.exe" -pc My Name-PC -launch If you won't want passing parameter and your .exe file in test folder of c: drive start "" "C:\test\test1.exe" -pc My Name-PC -launch I...
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Using unset vs. setting a variable to empty

I'm currently writing a bash testing framework, where in a test function, both standard bash tests ( [[ ) as well as predefined matchers can be used. Matchers are wrappers to '[[' and besides returning a return code, set some meaningful message saying what was expected. ...
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Creating a ZIP Archive in Memory Using System.IO.Compression

..."Bar!"); } } using (var fileStream = new FileStream(@"C:\Temp\test.zip", FileMode.Create)) { memoryStream.Seek(0, SeekOrigin.Begin); memoryStream.CopyTo(fileStream); } } So we need to call dispose on ZipArchive before we can use it, which means passing 'true' as the ...