cpp / beginner
Snippet
While Loops for Conditional Repetition
A while loop repeats a block of code as long as a condition remains true. The condition is checked BEFORE each iteration, so if it starts false, the loop body never executes. In this example, count starts at 0 and increments until it reaches 5, causing the condition count < 5 to become false and exit the loop.
snippet.cpp
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#include <iostream>int main() {int count = 0;while (count < 5) {std::cout << "Count is: " << count << std::endl;count = count + 1;}std::cout << "Loop finished!" << std::endl;return 0;}
Breakdown
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#include <iostream>
Includes the input/output stream library for console output
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int main() {
Entry point of the program, returns an integer
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int count = 0;
Declares an integer variable initialized to 0
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while (count < 5) {
Loop continues while count is less than 5
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std::cout << "Count is: " << count << std::endl;
Prints current count value to console
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count = count + 1;
Increments count by 1 each iteration
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}
Closing brace ends the while loop body
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std::cout << "Loop finished!" << std::endl;
Prints completion message after loop exits
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return 0;
Returns 0 to indicate successful program termination