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What is the difference between sigaction and signal?
...ermits
this variation); do not use it for this purpose.
In other words: don't use signal(). Use sigaction() instead!
What does GCC think?
Compatibility Note: As said above for signal, this function should be avoided when possible. sigaction is the preferred method.
Source: https://w...
PUT vs. POST in REST
... already exists, so sending the same request twice has no effect. In other words, calls to PUT are idempotent.
The RFC reads like this:
The fundamental difference between the POST and PUT requests is reflected in the different meaning of the Request-URI. The URI in a POST request identifies the...
What's the difference between using “let” and “var”?
... but I'm still not quite sure how it behaves differently than the var keyword.
36 Answers
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What are Vertex Array Objects?
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Vertex Array Objects are like macros in word processing programs and the like. A good description is found here.
Macros just remember the actions you did, such as activate this attribute, bind that buffer, etc. When you call glBindVertexArray( yourVAOId ), it si...
Why Qt is misusing model/view terminology?
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We did not use the word "MVC" in the Qt documentation during my time at Trolltech. In general I think it's best to document what's there, not write about what's not there. However, over on gitorious you can find out who added that text and add ...
javac is not recognized as an internal or external command, operable program or batch file [closed]
... Windows programs list, and make sure the Java package's name includes the words "Development Kit" in it.
Don't use set
(If you weren't planning to anyway, feel free to skip this section.)
Several other answers recommend executing some variation of:
C:\>:: DON'T DO THIS
C:\>set PATH=C:\Pro...
What is the purpose of Rank2Types?
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To add some words connecting my answer to this one: consider the Haskell function f' g x y = g x + g y. Its inferred rank-1 type is forall a r. Num r => (a -> r) -> a -> a -> r. Since forall a is outside the function arrow...
Why use pointers? [closed]
...me try and answer this too.
Pointers are similar to references. In other words, they're not copies, but rather a way to refer to the original value.
Before anything else, one place where you will typically have to use pointers a lot is when you're dealing with embedded hardware. Maybe you need t...
In HTML5, should the main navigation be inside or outside the element?
...ning the logo and name of the site and possibly a horizontal menu..."
The word "possibly" there is key. It goes on to say that the header doesn't necessarily need to be a site header. For instance you could include a "header" on a pop-up modal or on other modular parts of the document where there i...
What is Common Gateway Interface (CGI)?
... feel that I understood this and I felt this every time I encountered this word. But frankly, I didn't. I'm still confused.
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