C goto Statement In this article, you'll learn about goto statment, how it works and why should it be avoided. In C programming, goto statement is used for altering the normal sequence of program execution by transferring control to some other part of the program. For statements are the most commonly used loop in the C language. Even though its syntax is typically a bit confusing to new programmers, you will see for loops so often that you will understand them in no time at all! 1) Write a for loop that prints every even number from 0 to 20. Execute a sequence of statements multiple times and abbreviates the code that manages the loop variable. 3: do.while loop. Like a ‘while’ statement, except that it tests the condition at the end of the loop body. 4: nested loops. You can use one or more loop inside any another ‘while’, ‘for’ or ‘do.while’ loop.
You may encounter situations, when a block of code needs to be executed several number of times. In general, statements are executed sequentially: The first statement in a function is executed first, followed by the second, and so on.
Programming languages provide various control structures that allow for more complicated execution paths.
A loop statement allows us to execute a statement or group of statements multiple times. Given below is the general form of a loop statement in most of the programming languages −
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C programming language provides the following types of loops to handle looping requirements.
|Sr.No.||Loop Type & Description|
Repeats a statement or group of statements while a given condition is true. It tests the condition before executing the loop body.
Executes a sequence of statements multiple times and abbreviates the code that manages the loop variable.
It is more like a while statement, except that it tests the condition at the end of the loop body.
You can use one or more loops inside any other while, for, or do.while loop.
Loop control statements change execution from its normal sequence. When execution leaves a scope, all automatic objects that were created in that scope are destroyed.
C supports the following control statements.
|Sr.No.||Control Statement & Description|
Terminates the loop or switch statement and transfers execution to the statement immediately following the loop or switch.
Causes the loop to skip the remainder of its body and immediately retest its condition prior to reiterating.
Transfers control to the labeled statement.
A loop becomes an infinite loop if a condition never becomes false. The for loop is traditionally used for this purpose. Since none of the three expressions that form the 'for' loop are required, you can make an endless loop by leaving the conditional expression empty.
When the conditional expression is absent, it is assumed to be true. You may have an initialization and increment expression, but C programmers more commonly use the for(;;) construct to signify an infinite loop.
NOTE − You can terminate an infinite loop by pressing Ctrl + C keys.