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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...ly' blocks. The reason is that C++ instead supports RAII: "Resource Acquisition Is Initialization" -- a poor name† for a really useful concept.
The idea is that an object's destructor is responsible for freeing resources. When the object has automatic storage duration, the object's destructor...
Is there a “theirs” version of “git merge -s ours”?
When merging topic branch "B" into "A" using git merge , I get some conflicts. I know all the conflicts can be solved using the version in "B".
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How to manually send HTTP POST requests from Firefox or Chrome browser?
... called Postman for this type of stuff. All the other extensions seemed a bit dated so made my own. It also has a bunch of other features which have been helpful for documenting our own API here.
Postman now also has native apps (i.e. standalone) for Windows, Mac and Linux! It is more preferable ...
What is the difference between the kernel space and the user space?
...ograms run in user space. User space is basically a form of sand-boxing -- it restricts user programs so they can't mess with memory (and other resources) owned by other programs or by the OS kernel. This limits (but usually doesn't entirely eliminate) their ability to do bad things like crashing th...
Exposing database IDs - security risk?
I've heard that exposing database IDs (in URLs, for example) is a security risk, but I'm having trouble understanding why.
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Compiling C++ on remote Linux machine - “clock skew detected” warning
I'm connected to my university's small Linux cluster via PuTTY and WinSCP, transferring files using the latter and compiling and running them with the former. My work so far has been performed in the university's labs, but today I have been doing some work at home that generated an interesting warn...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
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I tried once to write about this, but I gave up in the end, as the rules are somewhat diffuse. Basically, you’ll have to get the hang of it.
Perhaps it is best to concentrate on where curly braces and parenthesis can be used interchangeably:...
clear javascript console in Google Chrome
I was wondering if I could clear up the console with some command..
19 Answers
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“Instantiating” a List in Java? [duplicate]
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In Java, List is an interface. That is, it cannot be instantiated directly.
Instead you can use ArrayList which is an implementation of that interface that uses an array as its backing store (hence the name).
Since ArrayList is a kind of List, you can easily upca...
What's a quick way to comment/uncomment lines in Vim?
I have a Ruby code file open in vi, there are lines commented out with # :
46 Answers
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