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C fopen vs open
...ave used open to open the file in the first place if you want a FILE *. So including fdopen in that list is incorrect and confusing because it isn't very much like the others. I will now proceed to ignore it because the important distinction here is between a C standard FILE * and an OS-specific fil...
Left align two graph edges (ggplot)
... (works with any number of plots) using a modified version of rbind.gtable included in gridExtra
gA <- ggplotGrob(A)
gB <- ggplotGrob(B)
grid::grid.newpage()
grid::grid.draw(rbind(gA, gB))
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Difference between “@id/” and “@+id/” in Android
...(or call it the builder) to create a new entry in R.java, thus you have to include a + sign.
While in the other case, like android:layout_below="@id/myTextView" , you're referring to an id that has already been created, so parser links this to the already created id in R.java.
More Info Again
As ...
C state-machine design [closed]
...sible transitions and the functions that get called for those transitions (including the catch-all last one):
tTransition trans[] = {
{ ST_INIT, EV_KEYPRESS, &GotKey},
: :
{ ST_ANY, EV_ANY, &FsmError}
};
#define TRANS_COUNT (sizeof(trans)/sizeof(*trans))
What that means is: if...
Calculating a directory's size using Python?
...t(get_size(), 'bytes')
And a oneliner for fun using os.listdir (Does not include sub-directories):
import os
sum(os.path.getsize(f) for f in os.listdir('.') if os.path.isfile(f))
Reference:
os.path.getsize - Gives the size in bytes
os.walk
os.path.islink
Updated
To use os.path.getsize, this...
Java switch statement: Constant expression required, but it IS constant
...ants, but that brings another couple of different restrictions:
You must include a default case, even if you have case for every known value of the enum; see Why is default required for a switch on an enum?
The case labels must all be explicit enum values, not expressions that evaluate to enum val...
How to determine whether a given Linux is 32 bit or 64 bit?
...of course) when they actually create the package with all of its metadata, including platform architecture, so there is a packaging tool that outputs it for other packaging tools and scripts to use, called dpkg-architecture. It includes both what it's configured to build for, as well as the current ...
How to generate and validate a software license key?
...ry sound. But this solution is already weak (as the software itself has to include the secret key somewhere), so I don't think this discovery invalidates the solution as far as it goes.
Just thought I really ought to mention this, though; if you're planning to derive something else from this, bewar...
How do I copy a folder from remote to local using scp? [closed]
... -r user@your.server.example.com:/path/to/foo /home/user/Desktop/
By not including the trailing '/' at the end of foo, you will move the directory itself (including contents), rather than only the contents of the directory.
From man scp (See online manual)
-r Recursively copy entire directori...
Is there something like RStudio for Python? [closed]
... project for interactive data manipulation in Python (and other languages, including R). It basically allows you to interactively code and document what you're doing in one interface and later on save it as a:
notebook (.ipynb)
script (a .py file including only the source code)
static html (and th...