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C gives you a choice of three types of loop, while, do while and for.
- The while loop keeps repeating an action until an associated test returns false.
This is useful where the programmer does not know in advance how many times the loop will be traversed.
- The do while loops is similar, but the test occurs after the loop body is executed. This ensures that the loop body is run at least once.
- The for loop is frequently used, usually where the loop will be traversed a fixed number of times.
It is very flexible, and novice programmers should take care not to abuse the power it offers.