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C++ keyword: do

Usage

  • do-while loop: as the declaration of the loop

Example

#include <iostream>

int main() noexcept
{
    int i{0};
    
    // executes statement 'std::cout << ++i;'
    // before checking the condition 'i <= 2'
    do
        std::cout << ++i;
    while (i <= 2);
}

Output:

123

See also

  • if statement: if, else
  • constexpr if statement: constexpr (constexpr if statement)
(since C++17)
  • consteval if statement: consteval (consteval if statement)
(since C++23)
  • switch statement: switch, case
  • default (as case label declaration) etc: default
  • goto statement: goto
  • continue statement: continue
  • break statement: break
  • return statement: return
  • co_return statement (return from a coroutine): co_return
(since C++20)
  • do-while loop and while loop: while
  • for loop and range-based for loop: for

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https://en.cppreference.com/cpp/keyword/do

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