THINK++ — Engineering Visualized

Iteration

Loops Overview

Loops execute a block of code repeatedly. Choosing the right loop type depends on whether you know the iteration count and when to check the condition.

for— Known iteration count

for (init; cond; update)

while— Unknown count, check first

while (condition)

do-while— Execute at least once

do { } while (cond)

range-for— Iterate over containers

for (auto x : arr)

INFINITE LOOP

while (true) { ... }  // or
for (;;) { ... }

Use with break to create loops that terminate on a specific internal condition.

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