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Copying a HashMap in Java
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The difference is that in C++ your object is on the stack, whereas in Java, your object is in the heap. If A and B are Objects, any time in Java you do:
B = A
A and B point to the same object, so anything you do to A you do to B and vice versa.
Us...
Pointer vs. Reference
...st practical difference for an output parameter is purely syntax. Google's C++ Style Guide (https://google.github.io/styleguide/cppguide.html#Reference_Arguments), for example, mandates only pointers for output parameters, and allows only references that are const. The reasoning is one of readabilit...
Questions every good Java/Java EE Developer should be able to answer? [closed]
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I confused a C++ lecturer yesterday with the diamond inheritance problem, she didn't know about it at all :)
– Esko
Jan 22 '10 at 10:01
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About “*.d.ts” in TypeScript
...as told by someone that this kind of file is something like "head file" in C++ but for JS only. But I cannot convert a pure JS file to *.d.ts file unless I forcely change the *.js to *.ts . So I have three files:
a JS file, a TS file and a *.d.ts file.
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Why does sizeof(x++) not increment x?
Here is the code compiled in dev c++ windows:
9 Answers
9
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How to call a parent class function from derived class function?
How do I call the parent function from a derived class using C++? For example, I have a class called parent , and a class called child which is derived from parent. Within
each class there is a print function. In the definition of the child's print function I would like to make a call to the ...
Recursive lambda functions in C++11
I am new to C++11. I am writing the following recursive lambda function, but it doesn't compile.
14 Answers
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Virtual member call in a constructor
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The rules of C# are very different from that of Java and C++.
When you are in the constructor for some object in C#, that object exists in a fully initialized (just not "constructed") form, as its fully derived type.
namespace Demo
{
class A
{
public A()
{
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namespaces for enum types - best practices
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Original C++03 answer:
The benefit from a namespace (over a class) is that you can use using declarations when you want.
The problem with using a namespace is that namespaces can be expanded elsewhere in the code. In a large projec...
count vs length vs size in a collection
...to the number of elements in the vector, not its capacity()… at least in C++, which I think is the originator of vectors with sizes.
– Dave Abrahams
May 10 '13 at 17:05
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