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Resolve build errors due to circular dependency amongst classes
...ember that the .cc and not the .h is the unit of compilation), you need to allocate space for object A. So, well, how much space then? Enough to store B! What's the size of B then? Enough to store A! Oops.
Clearly a circular reference that you must break.
You can break it by allowing the compiler ...
Which is faster : if (bool) or if(int)?
...s a bool as an 8-bit value, and your system ABI requires it to "promote" small (< 32-bit) integer arguments to 32-bit when pushing them onto the call stack. So to compare a bool, the compiler generates code to isolate the least significant byte of the 32-bit argument that g receives, and compares...
mongodb/mongoose findMany - find all documents with IDs listed in array
I have an array of _ids and I want to get all docs accordingly, what's the best way to do it ?
5 Answers
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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in
...
A static variable shares the value of it among all instances of the class.
Example without declaring it static:
public class Variable
{
public int i = 5;
public void test()
{
i = i + 5;
Console.WriteLine(i);
}
}
public class Exercise
{
...
What does an exclamation mark mean in the Swift language?
...pple have chosen to declare the types as implicitly unwrapped, making the calling code more convenient, but less safe.
Perhaps Apple might comb through their frameworks in the future, removing the uncertainty of implicitly unwrapped ("probably never nil") parameters and replacing them with optional...
Monad in plain English? (For the OOP programmer with no FP background)
... * 2); }
then the corresponding function on Nullable<int> can make all the operators and calls in there work together "in the same way" that they did before.
(That is incredibly vague and imprecise; you asked for an explanation that didn't assume anything about knowledge of functional compo...
How to find the nearest parent of a Git branch?
...al) are just transient labels that point to specific commits in the continually growing commit DAG. As such, the relationship between branches can vary over time, but the relationship between commits does not.
---o---1 foo
\
2---3---o bar
...
Can I get a list of files marked --assume-unchanged?
... unchanged files at the current directory and below. If you want a list of all "assume-unchanged" files in the repository, you'll need git ls-files -v `git rev-parse --show-toplevel` | grep "^[a-z]"
– Trebor Rude
May 15 '13 at 15:43
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How to get root access on Android emulator?
I have All Android SDK versions(from 1.5 to 2.3.3), and I tried many methods for getting root in Android emulator. I don't use any Android device and test everything on emulator(AVD).
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Generating Guids in Ruby
I have problem that is really easily solved with Guids.
10 Answers
10
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