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When is assembly faster than C?
...write the function in a way that the C-compiler has a chance to understand what's going on. This allows the code to be inlined, register allocated, common subexpression elimination and constant propagation can be done as well. You'll get a huge performance improvement over the hand-written assembler...
In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?
...ontending technology you've omitted is Server-Sent Events / Event Source. What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet? has a good discussion of all of these. Keep in mind that some of these are easier than others to integrate with on the server side.
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How do I check if a string contains a specific word?
...tions are nearly by definition for readability (to communicate the idea of what you're doing). Compare which is more readable: if ($email->contains("@") && $email->endsWith(".com)) { ... or if (strpos($email, "@") !== false && substr($email, -strlen(".com")) == ".com") { ...
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Disable LESS-CSS Overwriting calc() [duplicate]
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@TomRoggero what version of less are you running? What's the rest of your environment? I've updated the original answer to include a working example.
– Patrick Berkeley
Aug 30 '14 at 16:54
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How do you determine what SQL Tables have an identity column programmatically
I want to create a list of columns in SQL Server 2005 that have identity columns and their corresponding table in T-SQL.
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system(“pause”); - Why is it wrong?
...ent which closes a terminal window before you can read the program output. What you should do is to fix that environment. If that can't be done, use this workaround, possibly only if IsDebuggerPresent() returns true and document this workaround properly ("why is this code here?").
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Override console.log(); for production [duplicate]
...re. Looking at the output of each of them, they "appear" to be the same... what would you say the difference is between log and info?
– Chase Florell
Aug 12 '11 at 15:52
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What is the default value for enum variable?
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It is whatever member of the enumeration represents the value 0. Specifically, from the documentation:
The default value of an enum E is the value produced by the expression (E)0.
As an example, take the following enum:
enum...
What is more efficient? Using pow to square or just multiply it with itself?
What of these two methods is in C more efficient? And how about:
7 Answers
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What is a stored procedure?
What is a "stored procedure" and how do they work?
17 Answers
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