[C++ Beginner Tutorial] C++ Loop

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C++ loop

Sometimes, it may be necessary to execute the same block of code multiple times. In general, statements are executed sequentially: the first statement in the function is executed first, followed by the second statement, and so on.

Programming languages ​​provide various control structures that allow for more complex execution paths.

[A loop statement] allows us to execute a statement or a group of statements multiple times. The following is the general form of a loop statement in most programming languages:
C++ programming language provides the following types of loops. Click on the links to see the details of each type.

Loop control statements alter the normal sequence of execution. When execution leaves a scope, all automatic objects created in that scope are destroyed.

C++ provides the following control statements. Click on the links to see the details of each statement.

A loop becomes an infinite loop if the condition is never false. For loops can be used to implement infinite loops in the traditional sense. Since none of the three expressions that make up the loop are required, you can leave some conditional expressions blank to form an infinite loop.

#include <iostream>
using namespace std;

int main ()

   for( ; ; )
      printf("This loop will run forever.\n");

   return 0;

When the conditional expression does not exist, it is assumed to be true. You can also set an initial value and increment expression, but in general C++ programmers prefer to use the for(;;) construct to represent an infinite loop.

NOTE: You can terminate an infinite loop by pressing the Ctrl + C keys.

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