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Programmatically find the number of cores on a machine
...;sysinfo);
int numCPU = sysinfo.dwNumberOfProcessors;
Linux, Solaris, AIX and Mac OS X >=10.4 (i.e. Tiger onwards)
int numCPU = sysconf(_SC_NPROCESSORS_ONLN);
FreeBSD, MacOS X, NetBSD, OpenBSD, etc.
int mib[4];
int numCPU;
std::size_t len = sizeof(numCPU);
/* set the mib for hw.ncpu */
mib[...
Pushing app to heroku problem
I am trying to push my app to heroku and I get the following message:
4 Answers
4
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Creating an empty bitmap and drawing though canvas in Android
I'd like to create an empty bitmap and set a canvas to that bitmap and then draw any shape on the bitmap.
2 Answers
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How does OpenID authentication work?
...e of already existing internet technology (URI, HTTP, SSL, Diffie-Hellman) and realizes that people are already creating identities for themselves whether it be at their blog, photostream, profile page, etc. With OpenID you can easily transform one of these existing URIs into an account which can be...
Unable to modify ArrayAdapter in ListView: UnsupportedOperationException
...elf...Found it didn't work. So i check out the source code of ArrayAdapter and found out the problem. The ArrayAdapter, on being initialized by an array, converts the array into a AbstractList (List) which cannot be modified.
Solution
Use an ArrayList<String> instead using an array while init...
Matplotlib transparent line plots
I am plotting two similar trajectories in matplotlib and I'd like to plot each of the lines with partial transparency so that the red (plotted second) doesn't obscure the blue.
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check if variable is dataframe
when my function f is called with a variable I want to check if var is a pandas dataframe:
2 Answers
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TortoiseHg Apply a Patch
... there is no built-in support in TortoiseHg for this. Try this from a command prompt:
hg import my-patch-file.patch
That should apply the patch to your Mercurial repo and working copy.
First Stab Answer
You should be able to right-click on the patch file and choose "Apply patch..." - that's ho...
How to get datetime in JavaScript?
... answered Apr 30 '14 at 17:34
Andrew MaoAndrew Mao
30.2k1616 gold badges118118 silver badges205205 bronze badges
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AngularJS: disabling all form controls between submit and server response
I have a dilemma about what is the best (and correct) approach if I want to disable form controls (or at least make them unavailable for user interaction) during a period of time when user clicks sort of "Save" or "Submit" button and data travelling over the wire. I don't want to use JQuery (which i...