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How to initialize all members of an array to the same value?
...an "all-bits-zero", so using the above is
better and more portable than memset(). (Floating point values will be
initialized to +0, pointers to null value, etc.)
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How do I run a program with a different working directory from current, from Linux shell?
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Late reply, that depends on the settings of the bash file. Bash can continue executing commands even after a failed command (unlike using &&), but it can be set to not do that using set -e in the file and then it would fail to popd.
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Soft wrap at 80 characters in Vim in window of arbitrary width
I want to use Vim's soft wrap capability ( :set wrap ) to wrap some code at 80 characters, regardless of my actual window width.
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How can I use Homebrew to install both Python 2 and 3 on Mac?
...een python versions with the command:
$ pyenv global 3.3.1
Also you can set a python version for the current directory with:
$ pyenv local 3.5.2
You can check by running python --version:
$ python --version
Python 3.5.2
1 Homebrew used to instruct you to do this upon installation of pyenv...
How to use sed/grep to extract text between two words?
I am trying to output a string that contains everything between two words of a string:
12 Answers
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How to iterate through SparseArray?
...eArray)}. Value >
* {@link android.util.SparseArray#size()} set to that size.
* @return A ListIterator on the elements of the SparseArray. The elements
* are iterated in the same order as they occur in the SparseArray.
* {@link #nextIndex()} and {@link #previousInde...
printf with std::string?
...ces.
printf isn't extensible. You can only pass primitive types to it. The set of conversion specifiers it understands is hard-coded in its implementation, and there's no way for you to add more/others. Most well-written C++ should use these types primarily to implement types oriented toward the pro...
Base64 Java encode and decode a string [duplicate]
I want to encode a string into base64 and transfer it through a socket and decode it back.
6 Answers
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Why use the yield keyword, when I could just use an ordinary IEnumerable?
... yield return i;
}
}
}
public bool Canceled { get; set; }
public void StartCounting()
{
foreach (var number in GetNextNumber())
{
if (this.Canceled) break;
Console.WriteLine(number);
}
}
This writes
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
...etc. to th...
Why should I use a pointer rather than the object itself?
I'm coming from a Java background and have started working with objects in C++. But one thing that occurred to me is that people often use pointers to objects rather than the objects themselves, for example this declaration:
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