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When to use std::size_t?
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A good rule of thumb is for anything that you need to compare in the loop condition against something that is naturally a std::size_t itself.
std::size_t is the type of any sizeof expression and as is guaranteed to be able to express the maximum size of any object (including...
Why does changing 0.1f to 0 slow down performance by 10x?
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Welcome to the world of denormalized floating-point! They can wreak havoc on performance!!!
Denormal (or subnormal) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Ope...
Conversion of a datetime2 data type to a datetime data type results out-of-range value
...datatable with 5 columns, where a row is being filled with data then saved to the database via a transaction.
26 Answers
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
I've just noticed that the long, convoluted Facebook URLs that we're used to now look like this:
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config.assets.compile=true in Rails production, why not?
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I wrote that bit of the guide.
You definitely do not want to live compile in production.
When you have compile on, this is what happens:
Every request for a file in /assets is passed to Sprockets. On the first request for each and every asset it is compiled and cached in whatever ...
Is there some way to PUSH data from web server to browser?
...he problem with Ajax is that the browser should poll the server frequently to find whether there is new data. This increases server load.
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Why should I use IHttpActionResult instead of HttpResponseMessage?
I have been developing with WebApi and have moved on to WebApi2 where Microsoft has introduced a new IHttpActionResult Interface that seems to recommended to be used over returning a HttpResponseMessage . I am confused on the advantages of this new Interface. It seems to mainly just provide a SL...
Git, How to reset origin/master to a commit?
I reset my local master to a commit by this command:
4 Answers
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Python append() vs. + operator on lists, why do these give different results?
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To explain "why":
The + operation adds the array elements to the original array. The array.append operation inserts the array (or any object) into the end of the original array, which results in a reference to self in that sp...
Relative imports in Python 2.7
...file, and importing that file from somewhere else. Just knowing what directory a file is in does not determine what package Python thinks it is in. That depends, additionally, on how you load the file into Python (by running or by importing).
There are two ways to load a Python file: as the top-l...