What is the meaning of prepended double colon - Stack Overflow
I found this line of a code in a class which I have to modify: ::Configuration * tmpCo = m_configurationDB;//pointer to current db and I don't know what exactly means the double colon …
What does '&' do in a C++ declaration? - Stack Overflow
I am a C guy and I'm trying to understand some C++ code. I have the following function declaration:
How does the % operator (modulo, remainder) work?
Let's say that I need to format the output of an array to display a fixed number of elements per line. How do I go about doing that using modulo operation? Using C++, the code below works for displ...
Using :: (scope resolution operator) in C++ - Stack Overflow
A fine question, but a little too broad (IMO). That's called the scope-resolution operator, and your search term for further learning is scope. All those names (cout, member functions of A) are defined in …
c++ - What is the difference between the dot (.) operator and ...
The simplest difference between the two is that "->" dereferences a pointer before it goes to look at that objects fields, function etc. whereas "." doesn't dereference first. Use "->" when you have a pointer to …
What does the "::" mean in C++? - Stack Overflow
Mar 17, 2011 · What does this symbol mean? AirlineTicket::AirlineTicket ()@PaulR Not everyone who arrives upon this question is looking to learn C++. I, for example, just happened to be skimming …
how does the ampersand(&) sign work in c++? - Stack Overflow
Possible Duplicate: What are the differences between pointer variable and reference variable in C++? This is confusing me: class CDummy { public: int isitme (CDummy& param); }; int CD...
What is the <=> ("spaceship", three-way comparison) operator in C++?
Nov 24, 2017 · This is called the three-way comparison operator. According to the P0515 paper proposal: There’s a new three-way comparison operator, <=>. The expression a <=> b returns an …
c++ - Difference between | and || , or & and && - Stack Overflow
Dec 28, 2015 · Closed 9 years ago. These are two simple samples in C++ written on Dev-cpp C++ 5.4.2:
What does T&& (double ampersand) mean in C++11? - Stack Overflow
Mar 30, 2011 · I've been looking into some of the new features of C++11 and one I've noticed is the double ampersand in declaring variables, like T&& var. For a start, what is this beast called? I wish G...