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ctypes - Beginner
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void myprint(void);
void myprint()
{
printf("hello world\n");
}
Now compile it as a shared library (mac fix found here):
$ gcc -shared -Wl,-soname,testlib -o testlib.so -fPIC testlib.c
# or... for Mac OS X
$ gcc -shared -Wl,-install_name,testlib.so -o testlib.so -fPIC testlib.c
Then, write...
What is the benefit of using “SET XACT_ABORT ON” in a stored procedure?
...bort the batch when a run-time error occurs. It covers you in cases like a command timeout occurring on the client application rather than within SQL Server itself (which isn't covered by the default XACT_ABORT OFF setting.)
Since a query timeout will leave the transaction open, SET XACT_ABORT ON i...
In git, is there a way to show untracked stashed files without applying the stash?
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Untracked files are stored in the third parent of a stash commit. (This isn't actually documented, but is pretty obvious from The commit which introduced the -u feature, 787513..., and the way the rest of the documentation for git-stash phrases things... or just by doing git log --g...
What's the difference between IEquatable and just overriding Object.Equals()?
... types? I always thought that casts were just "statements" you make to the compiler when you assign some not obvious casts from one kind of object to another. This is, after you compile, that the code wouldn't even know there was a cast there.
– devoured elysium
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how to set “camera position” for 3d plots using python/matplotlib?
...instance (and noting which azimuth angle as I saved the plot). For a more complicated camera pan, you can adjust both the elevation and angle to achieve the desired effect.
from mpl_toolkits.mplot3d import Axes3D
ax = Axes3D(fig)
ax.scatter(xx,yy,zz, marker='o', s=20, c="goldenrod", al...
bash HISTSIZE vs. HISTFILESIZE?
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Short answer:
HISTSIZE is the number of lines or commands that are stored in memory in a history list while your bash session is ongoing.
HISTFILESIZE is the number of lines or commands that (a) are allowed in the history file at startup time of a session, and (b) are stor...
Override devise registrations controller
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Why are Perl 5's function prototypes bad?
... very useful but prototypes are very limited:
They have to be visible at compile-time.
They can be bypassed.
Propagating context to arguments can cause unexpected behavior.
They can make it difficult to call functions using anything other than the
strictly prescribed form.
See Prototypes in perl...
How to apply a Git patch to a file with a different name and path?
I have two repositories. In one, I make changes to file ./hello.test . I commit the changes and create a patch from that commit with git format-patch -1 HEAD . Now, I have a second repository that contains a file that has the same contents as hello.test but is placed in a different directory under...
What is the purpose of the -m switch?
...rst line of the Rationale section of PEP 338 says:
Python 2.4 adds the command line switch -m to allow modules to be located using the Python module namespace for execution as scripts. The motivating examples were standard library modules such as pdb and profile, and the Python 2.4 implementatio...