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The general form of the for statement can be expressed as follows: When using this version of the for statement, keep in mind that: 1  The initialization expression initializes the loop; it's executed once, as the loop begins. 2  When the termination expression evaluates to false, the loop terminates.
There are several kinds of initialization, which may occur at different points in program execution. Different kinds of initialization are not mutually exclusiveâfor example, list initialization can trigger value initialization and in other circumstances, it can trigger aggregate initialization.