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what does : mean in c++

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Zany Zebra answered on December 16, 2021 Popularity 10/10 Helpfulness 1/10

answer what does : mean in c++

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what does : mean in c++

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for ( range_declaration : range_expression ) 
    loop_statement

Parameters :
range_declaration : 
a declaration of a named variable, whose type is the 
type of the element of the sequence represented by 
range_expression, or a reference to that type.
Often uses the auto specifier for automatic type 
deduction.

range_expression : 
any expression that represents a suitable sequence 
or a braced-init-list.

loop_statement : 
any statement, typically a compound statement, which
is the body of the loop.

Popularity 10/10 Helpfulness 1/10 Language cpp

Source: www.geeksforgeeks.org

Tags: c++ mean

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Contributed on Apr 16 2022

Zany Zebra

0 Answers Avg Quality 2/10

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-1

// Illustration of range-for loop
// using CPP code
#include <iostream>
#include <vector>
#include <map>
  
//Driver
int main() 
{
    // Iterating over whole array
    std::vector<int> v = {0, 1, 2, 3, 4, 5};
    for (auto i : v)
        std::cout << i << ' ';
      
    std::cout << '\n';
      
    // the initializer may be a braced-init-list
    for (int n : {0, 1, 2, 3, 4, 5})
        std::cout << n << ' ';
      
    std::cout << '\n';
   
    // Iterating over array
    int a[] = {0, 1, 2, 3, 4, 5};     
    for (int n : a)
        std::cout << n << ' ';
      
    std::cout << '\n';
      
    // Just running a loop for every array
    // element
    for (int n : a)  
        std::cout << "In loop" << ' ';
      
    std::cout << '\n';
      
    // Printing string characters
    std::string str = "Geeks";
    for (char c : str) 
        std::cout << c << ' ';
          
    std::cout << '\n';
  
    // Printing keys and values of a map
    std::map <int, int> MAP({{1, 1}, {2, 2}, {3, 3}});
    for (auto i : MAP)
        std::cout << '{' << i.first << ", " 
                  << i.second << "}\n";
}

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: www.geeksforgeeks.org

Tags: c++

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Contributed on Apr 16 2022

Zany Zebra

0 Answers Avg Quality 2/10

C++ meaning ::

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-2

struct Base {
    void foo();
};
struct Derived : Base {
    void foo();
    void bar() {
       Derived::foo();
       Base::foo();
    }
};

Popularity 10/10 Helpfulness 1/10 Language cpp

Source: stackoverflow.com

Tags: c++

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Contributed on Dec 16 2021

Colorful Cockroach

0 Answers Avg Quality 2/10

what does | mean in c++

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-2

x = 5;

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: www.cplusplus.com

Tags: c++

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Contributed on Jun 05 2022

Said HR

0 Answers Avg Quality 2/10

what does : mean in c++

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