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Why does GCC generate such radically different assembly for nearly the same C code?
...nd how GCC optimizes fast_trunc_one().
Believe it or not, fast_trunc_one() is being optimized to this:
int fast_trunc_one(int i) {
int mantissa, exponent;
mantissa = (i & 0x07fffff) | 0x800000;
exponent = 150 - ((i >> 23) & 0xff);
if (exponent < 0) {
return...
Zero-based month numbering [closed]
Some popular programming languages use month numbering which is off by 1 -- JavaScript comes to mind, as does Java, and if memory serves, C is another. I have some questions:
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Are single quotes allowed in HTML?
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This is similar to When did single quotes in HTML become so popular?. Single quotes around attributes in HTML are and always have been permitted by the specification. I don't think any browsers wouldn't understand them.
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Why is using the JavaScript eval function a bad idea?
The eval function is a powerful and easy way to dynamically generate code, so what are the caveats?
26 Answers
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What is database pooling?
... just wanted to know the concept of database connection pooling and how it is achieved.
6 Answers
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Threading in a PyQt application: Use Qt threads or Python threads?
...pplication that regularly retrieves data through a web connection. Since this retrieval takes a while, this causes the UI to be unresponsive during the retrieval process (it cannot be split into smaller parts). This is why I'd like to outsource the web connection to a separate worker thread.
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Why is there an unexplainable gap between these inline-block div elements? [duplicate]
... the margin being set to 0. There are no parent divs effecting them - What is going on?
6 Answers
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How do I move a redis database from one server to another?
I currently have a live redis server running on a cloud instance and I want to migrate this redis server to a new cloud instance and use that instance as my new redis server. If it were MySQL, I would export the DB from the old server and import it into the new server. How should I do this with redi...
Is there a portable way to get the current username in Python?
Is there a portable way to get the current user's username in Python (i.e., one that works under both Linux and Windows, at least). It would work like os.getuid :
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How to make script execution wait until jquery is loaded
I am having a problem where the page is loading so fast, that jquery hasn't finished loading before it is being called by a subsequent script. Is there a way to check for the existence of jquery and if it doesn't exist, wait for a moment and then try again?
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