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Why declare a struct that only contains an array in C?
... (so it allows cleaner code - it won't make any difference in speed etc)
– John Carter
Aug 6 '11 at 11:51
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How to efficiently concatenate strings in go
...xample: For the peeking behavior when the bytes are passed to an io.Reader etc.
Note
Do not copy a StringBuilder value as it caches the underlying data.
If you want to share a StringBuilder value, use a pointer to it.
Check out its source code for more details, here.
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What is the relation between BLAS, LAPACK and ATLAS
...tor by a scalar”, “multiply two matrices and add to a third matrix”, etc ...).
LAPACK is a collection of higher-level linear algebra operations. Things like matrix factorizations (LU, LLt, QR, SVD, Schur, etc) that are used to do things like “find the eigenvalues of a matrix”, or “find...
Visual Studio popup: “the operation could not be completed”
...tion_FileName.suo" file?"
Also computer crashing like e.g. power outage etc...
Applies to Update 2 and Update 3 as well as fresh base without any updates...
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Git diff to show only lines that have been modified
...onal git diff options such as -R, --src-prefix, --dst-prefix, --no-prefix, etc.
The two greps can be combined into a single grep -E -v '^(\+\+\+ b/|--- a/|@@ |diff --git|index )', but I find the double grep version easier to understand.
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Create new user in MySQL and give it full access to one database
...is the command used to create users and grant rights to databases, tables, etc.
ALL PRIVILEGES - This tells it the user will have all standard privileges. This does not include the privilege to use the GRANT command however.
dbtest.* - This instructions MySQL to apply these rights for use in the e...
Clang optimization levels
On gcc, the manual explains what -O3 , -Os , etc. translate to in terms of specific optimisation arguments ( -funswitch-loops , -fcompare-elim , etc.)
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How to use MDC with thread pools?
...lt;Runnable> workQueue) {
return new MdcThreadPoolExecutor(MDC.getCopyOfContextMap(), corePoolSize, maximumPoolSize, keepAliveTime, unit,
workQueue);
}
/**
* Pool where task threads always have a specified, fixed MDC.
*/
public static MdcThreadPoolEx...
How to change package name of an Android Application
...orts for you. You can even have it fix it for you in comments and strings, etc.
Lastly, change the package name accordingly in your AndroidManifest.xml towards the top. Otherwise you will get errors everywhere complaining about R.whatever.
Another very useful solution
First create a new package w...
How do I time a method's execution in Java?
...ilt-in class, like Timer t = new Timer(); String s = t.getElapsed(format); etc...
– Ogre Psalm33
Oct 8 '08 at 12:48
18
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