Architecture Diagram
for (init; condition; increment) {
statement1;
if (skip) continue; ───┐ (Jump directly to increment step)
statement2; │
} ▼
increment -> condition Topic 20 of 91 3. Control Flow in C++ Interactive Tutorial
The continue Statement in C++: Skipping Selected Iterations
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Direct Answer & Core Concept
The continue statement skips the remaining statements in the body of the innermost enclosing loop and proceeds directly to the next cycle. In a for loop, continue jumps to the increment step; in while and do-while loops, it jumps directly to condition evaluation.
Detailed Explanation & Mechanics
1. Execution Path of `continue`:
Runnable Code Example: The continue Statement in C++
C++20 / C++23main.cpp
#include <iostream>
int main() {
std::cout << "Printing odd numbers between 1 and 10:
";
for (int i = 1; i <= 10; ++i) {
// Skip even numbers
if (i % 2 == 0) {
continue; // Skip the rest of the loop body
}
std::cout << i << " ";
}
std::cout << "
";
return 0;
}Common C++ Technical Interview Questions & Answers
Interview PrepQ
Q: What is the key behavioral difference between continue in a for loop vs a while loop?
A: In a `for` loop, `continue` jumps to the increment expression (`++i`) before checking the condition. In a `while` loop, it jumps directly to the condition; if the counter is updated at the bottom of the while body, an infinite loop can occur if not handled carefully.
Key Takeaways, Modern Best Practices & Idioms
C++ Best Practices & Production Rules
1. Use
2. Ensure loop update variables in
continue as an early guard check at the top of loops to avoid deeply nested if statements.2. Ensure loop update variables in
while loops are incremented before invoking continue to avoid infinite loops.