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Why should the “PIMPL” idiom be used? [duplicate]
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rbenv not changing ruby version
...NV_VERSION environment variable, if specified. You can use the rbenv shell command to set this environment variable in your current shell session.
The first .ruby-version file found by searching the directory of the script you are executing and each of its parent directories until reaching the roo...
How to remove elements from a generic list while iterating over it?
... a list of elements which each need processed and then depending on the outcome are removed from the list.
27 Answers
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String.equals versus == [duplicate]
...ates a string into tokens and stores them in an array of strings, and then compares a variable with the first home ... why isn't it working?
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Resize a large bitmap file to scaled output file on Android
...eone to correct me, but I accepted the load/resize approach you tried as a compromise.
Here are the steps for anyone browsing:
Calculate the maximum possible inSampleSize that still yields an image larger than your target.
Load the image using BitmapFactory.decodeFile(file, options), passing inSa...
Reliable way for a Bash script to get the full path to itself [duplicate]
...Bash script that needs to know its full path. I'm trying to find a broadly-compatible way of doing that without ending up with relative or funky-looking paths. I only need to support Bash, not sh, csh, etc.
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Impossible to make a cached thread pool with a size limit?
... the core size has been reached, there is no idle threads, and the queue becomes full, it creates new threads (until it reaches the max size).
If the max size has been reached, there is no idle threads, and the queue becomes full, the rejection policy kicks in.
In the first example, note that the ...
What is the difference between String.slice and String.substring?
...e(start, stop);
Syntax: string.substring(start, stop);
What they have in common:
If start equals stop: returns an empty string
If stop is omitted: extracts characters to the end of the string
If either argument is greater than the string's length, the string's length will be used instead.
Dist...
What's the point of const pointers?
...ou should use in pursuit of a very important C++ concept:
Find bugs at compile-time, rather than run-time, by getting the compiler to enforce what you mean.
Even though it doesn't change the functionality, adding const generates a compiler error when you're doing things you didn't mean to do. ...
What are the most common naming conventions in C?
What are the naming conventions commonly use in C? I know there are at least two:
11 Answers
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