C++ ::

/* :: is the scope resolution operator
 *
 * It allows to access objects outside of their scope, e.g to implement
 * a function of a class from outside the class
 */

class foo {      // define class named foo
  public:
    foo();       // constructor
    void bar();  // function
};

foo::foo()
{
  // Implement the constructor from outside the class
}

void foo::bar()
{
  // Implement bar from outside the class
}

void bar()
{
  // Implement different bar which is not within the same scope
}

Similar codes

2 votes137 views1 answer
Print a string with printf in c++
C++
4 votes189 views1 answer
Continue c++
C++
0 vote182 views6 answers
Std::string(size_t , char ) constructor:
C++
0 vote161 views1 answer
What is meant by pragma once in c++
C++
7 votes96 views2 answers
Cpp stl
C++
0 vote165 views1 answer
Sort vector of strings
C++
0 vote128 views1 answer
How to make a c++ iostream program restart when finished
C++
4 votes147 views2 answers
Jupyter lab use conda environment
C++
1 vote137 views1 answer
Create n threads cpp
C++
0 vote152 views1 answer
HackerEarth questions Siemens
C++