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C For Loop

# C for Loop [![Image 4: C Loops](#) C Loops](#) The **for** loop allows you to write a loop control structure that executes a specified number of times. ## Syntax The syntax of a **for** loop in C: for(init; condition; increment){statement(s); } The control flow of a for loop is as follows: 1. The **init** step is executed first, and only once. This step allows you to declare and initialize any loop control variables. You are not required to put a statement here, as long as a semicolon appears. 2. Next, the **condition** is evaluated. If it is true, the body of the loop is executed. If it is false, the body of the loop does not execute, and the flow of control jumps to the next statement just after the for loop. 3. After the body of the for loop executes, the flow of control jumps back up to the **increment** statement. This statement allows you to update any loop control variables. This statement can be left blank, as long as a semicolon appears after the condition. 4. The condition is now evaluated again. If it is true, the loop executes, and the process repeats itself (body of loop, then increment step, then again condition). After the condition becomes false, the for loop terminates. ## Flowchart ![Image 5: for loop in C](#) ## Example ## Example #includeint main(){/* for loop execution */for(int a = 10; a<20; a = a + 1){printf("value of a: %dn", a); }return 0; } When the above code is compiled and executed, it produces the following result: value of a: 10 value of a: 11 value of a: 12 value of a: 13 value of a: 14 value of a: 15 value of a: 16 value of a: 17 value of a: 18 value of a: 19 [![Image 6: C Loops](#) C Loops](#)
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