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Resolve build errors due to circular dependency amongst classes
...{
A a;
}
You can see why the compiler can't deal with this - it has no idea what B is - it has never even seen the symbol before.
So let's tell the compiler about B. This is known as a forward declaration, and is discussed further in this answer.
// main.cc
class B;
#include "A.h"
#include "B....
Best practices: throwing exceptions from properties
...hen the state is invalid. But it is also generally considered to be a good idea to design your classes such that it is simply not possible to get an invalid object initially, or to put it into invalid state via normal means (i.e., always ensure full initialization in constructors, and try make metho...
How to access outer class from an inner class?
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Great work. Inspired by this solution idea and a bit of thinking, I expanded parts of this answer to create another answer below with some more explanation.
– Edward
Jan 31 '16 at 20:10
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Final arguments in interface methods - what's the point?
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IntelliJ does this. My version is IntelliJ IDEA 2016.1.3 Build #IU-145.1617.
– Dormouse
Oct 12 '16 at 15:36
1
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How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
...hon files given as arguments.
Needing PYTHONPATH to be set is not a great idea - as with anything dependent on environment variables, replicating things consistently across different machines gets tricky. Better is to use Python 'packages' which can be installed (using 'pip', or distutils) in syste...
Why should we typedef a struct so often in C?
...ed C projects where this use of typedef to hide struct is considered a bad idea, the Linux kernel is probably the most well-known such project. See Chapter 5 of The Linux Kernel CodingStyle document for Linus' angry words. :) My point is that the "should" in the question is perhaps not set in stone,...
Should I always use a parallel stream when possible?
...allel easy.
However, just because its easy, doesn't mean its always a good idea, and in fact, it is a bad idea to just drop .parallel() all over the place simply because you can.
First, note that parallelism offers no benefits other than the possibility of faster execution when more cores are availa...
When to use inline function and when not to use it?
...y brace destructor is the one virtual function that it is sometimes a good idea to leave inline.
– CB Bailey
Dec 19 '09 at 10:49
2
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Does Java 8 provide a good way to repeat a value or function?
...significantly slower than IntStream.range? So it’s a good thing that the idea of not offering an IntStream (but use LongStream for all integer types) has been dropped. Note that for the sequential use case, there isn’t a reason to use stream at all: Collections.nCopies(8, 1).forEach(i -> Syst...
Embed git commit hash in a .Net dll
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@danmiser I have no idea what "UseMerge/SingleAssemblyName" is, so I can't help you. Create an issue at github.com/MarkPflug/MSBuildGitHash and I might take a look at it (that's not a promise).
– MarkPflug
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