break statement
From cppreference.com
Causes the enclosing for, while or do-while loop or switch statement to terminate.
Used when it is otherwise awkward to terminate the loop using the condition expression and conditional statements.
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[edit] Syntax
attr(optional) break ;
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[edit] Explanation
After this statement the control is transferred to the statement immediately following the enclosing loop. All automatic storage objects declared in enclosing loop are destroyed before the execution of the first line following the enclosing loop.
[edit] Keywords
[edit] Example
#include <iostream> int main() { int i = 2; switch (i) { case 1: std::cout << "1"; case 2: std::cout << "2"; //execution starts at this case label case 3: std::cout << "3"; case 4: case 5: std::cout << "45"; break; //execution of subsequent statements is terminated case 6: std::cout << "6"; } std::cout << '\n'; for (int j = 0; j < 2; j++) { for (int k = 0; k < 5; k++) { //only this loop is affected by break if (k == 2) break; std::cout << j << k << " "; } } }
Output:
2345 00 01 10 11