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MySQL connection not working: 2002 No such file or directory
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"The hostname localhost has a special meaning. It is bound to the use of Unix domain sockets. It is not possible to open a TCP/IP connection using the hostname localhost you must use 127.0.0.1 instead." - php.net/manual/en/mysqli.q...
Using the rJava package on Win7 64 bit with R
...o get up and running with R + rJava on Windows 7 64bit. There are several possibilities, but most have fatal flaws. Here is what worked for me:
Add jvm.dll to your PATH
rJava, the R<->Java bridge, will need jvm.dll, but R will have trouble finding that DLL. It resides in a folder like
C:\Pr...
Cross compile Go on OSX?
I am trying to cross-compile a go app on OSX to build binaries for windows and linux. I have read everything what I could find on the net. Closest example that I have found has been published on (apart from many unfinished discussions on go-nuts mailing list):
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How can I do test setup using the testing package in Go
... and
teardown is necessary around a call to m.Run. It should then call
os.Exit with the result of m.Run
It took me some time to figure out that this means that if a test contains a function func TestMain(m *testing.M) then this function will be called instead of running the test. And in this f...
How can I find out if I have Xcode commandline tools installed?
...by running command gcc --version, which gives the gcc details. I am on Mac OS X 10.13.6.
– GAURAV SRIVASTAVA
Sep 26 '18 at 21:37
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Benefit of using Parcelable instead of serializing object
...tures for live objects noted here: developer.android.com/reference/android/os/Parcel.html
– mikebabcock
Sep 26 '12 at 16:06
2
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Standard concise way to copy a file in Java?
...FileUtils.copyFile(); it handles all the heavy lifting for you.
And as a postscript, note that recent versions of FileUtils (such as the 2.0.1 release) have added the use of NIO for copying files; NIO can significantly increase file-copying performance, in a large part because the NIO routines defe...
How to show git log history for a sub directory of a git repo?
...anges for src/nvfs
$ git log --oneline -- src/nvfs
d6f6b3b Changes for Mac OS X
803fcc3 Initial Commit
# Show all changes (one additional commit besides in src/nvfs).
$ git log --oneline
d6f6b3b Changes for Mac OS X
96cbb79 gitignore
803fcc3 Initial Commit
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What is the correct way of using C++11's range-based for?
...t() const
{
return m_data;
}
private:
int m_data;
};
ostream& operator<<(ostream& os, const X& x)
{
os << x.Get();
return os;
}
If we use the above for (auto x : v) {...} syntax with this new class:
vector<X> v = {1, 3, 5, 7, 9};
cout &...
What's the best way to check if a file exists in C?
...
POSIX is an ISO standard; it defines access(). C is another ISO standard; it does not.
– Jonathan Leffler
Oct 24 '08 at 7:23
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