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How to change value of process.env.PORT in node.js?
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VAR_1=value VAR_2=11827 node -> simply use a space to use more than one variable on the same command
– p4bloch
Nov 18 '15 at 21:59
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Convert char to int in C and C++
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Well, in ASCII code, the numbers (digits) start from 48. All you need to do is:
int x = (int)character - 48;
Or, since the character '0' has the ASCII code of 48, you can just write:
int x = character - '0'; // The (int) cast is not necessary.
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How can I return pivot table output in MySQL?
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This basically is a pivot table.
A nice tutorial on how to achieve this can be found here: http://www.artfulsoftware.com/infotree/qrytip.php?id=78
I advise reading this post and adapt this solution to your needs.
Update
After the l...
Python SQL query string formatting
...l query string. When I'm debugging
my application I'd like to log to file all the sql query strings, and it is
important that the string is properly formated.
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Using ConfigurationManager to load config from an arbitrary location
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How can I get programmatically strConfigPath value for my ASP.NET WebForms application hosted in sub.domain.com/virtualDir2 and path C:\Portals\App1\v2 and config file in C:\Portals\App1\v2\web.config ?
– Kiquenet
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Why doesn't C have unsigned floats?
... answer to that is that there was no unsigned float standard defined originally. Since languages like to be backwards compatible, even if it were added languages couldn't make use of it. To see the floating point spec you should look at the IEEE standard 754 Floating-Point.
You can get around not...
Referring to a file relative to executing script
..., because $0 itself is unreliable.
As an alternative, you could use $BASH_SOURCE instead. Something like this:
source "${BASH_SOURCE%/*}/act.conf.sh"
There are some caveats to this solution, too. Check out the FAQ page to see the trade-offs between different solutions. They seem to recommend cd...
How to get the build/version number of your Android application?
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@Felix you can't call getPackageManager() outside of context, so getApplicationContext() (or passed context) might be needed.
– Sver
Sep 24 '12 at 7:06
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Which is the fastest algorithm to find prime numbers?
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Actually I don't think primegen is the fastest, or even the second-fastest; yafu and primesieve are both faster in general, I think, and certainly over 2^32. Both are (modified) sieves of Eratosthenes rather than the Atkin-Berns...
How to avoid passing parameters everywhere in play2?
In play1, I usually get all data in actions, use them directly in views. Since we don't need to explicitly declare parameters in view, this is very easy.
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